How to set up a secure offline savings wallet - Bitcoin Wiki

bitkey.io - "A self-contained Live CD/USB key with everything you need to perform highly secure air-gapped Bitcoin transactions. Offline cold storage made (slightly more) practical.". It's a project related to the Turnkey (Linux based virtual machines that can be run on Virtualbox et al.) project.

bitkey.io - submitted by todu to Bitcoin [link] [comments]

Why can't you just store the wallet offline on an usb stick? Not cold storage/hard ware. Just a regular usb stick? /r/Bitcoin

Why can't you just store the wallet offline on an usb stick? Not cold storage/hard ware. Just a regular usb stick? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

[uncensored-r/Bitcoin] Why can't you just store the wallet offline on an usb stick? Not cold storage/hard ware. Just a r...

The following post by f39ewjdwje932 is being replicated because the post has been silently removed.
The original post can be found(in censored form) at this link:
np.reddit.com/ Bitcoin/comments/7inmlt
The original post's content was as follows:
Wouldn't it keep it safe from hackers? I tried googling it, but never found anyone discussing this. Only Ledger and such.
submitted by censorship_notifier to noncensored_bitcoin [link] [comments]

Best bitcoin wallet for offline USB storage (PC/Windows)?

submitted by HurricaneTerminator to Bitcoin [link] [comments]

Need to keep your information safe? Secure usb key for bitcoin offline storage!

Brought to you by the same assholes that are bringing you
https://cryoniks.com/
That's right the vapor hardware 1000TH MINING MACHINE!!!!!
You want credibility ... well these fine folks http://www.saffordbaker.com/ https://www.facebook.com/crypteks http://www.cryptrade.com/ http://www.linkedin.com/pub/dennis-flynn/11/543/16b?trk=pub-pbmap http://www.bizapedia.com/mi/CRYONIKS-INC.html
APPARENTLY NEVER DELIVERED!!! http://www.kickstarter.com/projects/crypteks/crypteks-usbtm-encrypted-and-lockable-usb-solution/comments?cursor=1422484 http://www.linkedin.com/in/randysafford?trk=pub-pbmap
submitted by lizard450 to Bitcoin [link] [comments]

Newbie has some questions about his privacy

Hey Guys,
Im new to Monero and Im really fascinated by it so far. I used Bitcoin in the past but want to switch to Monero. This change has privacy reasons, thats why I want to make sure that how I use Monero is really safe, otherwise my change would not be worth it. I have some questions:

- Can I use Monero on my Computer without Tails? Will it still be private? I dont have enough storage for the blockchain on my Tails USB
- If I use Monero over the Cake wallet on my phone (connected to local node on my PC) is it also safe? And if I want to make a transaction with my cake wallet, does my PC with the local node need to be running or can it be offline?

thank you
submitted by Apfelmus1517 to Monero [link] [comments]

PDQ Deploy packs v72.0.0 (2020-09-18)

Background

This is v72.0.0 (v71.0.0, v70.0.0, v69.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.25 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v20.012.20041
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.433 (Chrome)
  • Adobe Flash Player v32.0.0.433 (Firefox)
  • Adobe Flash Player v32.0.0.433 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • FileZilla Client v3.50.0
  • Gimp v2.10.20 (x86)
  • Google Chrome Enterprise v85.0.4183.102
  • Google Chrome Enterprise v85.0.4183.102 (x86)
  • Google Earth Pro v7.3.3
  • Java Development Kit 8 Update 261
  • Java Development Kit 8 Update 261 (x86)
  • Java Development Kit 11.0.7
  • Java Runtime 8 update 261
  • Java Runtime 8 update 261 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v7.0.1
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v80.0.1
  • Mozilla Firefox v80.0.1 (x86)
  • Mozilla Firefox ESR v68.12.0
  • Mozilla Firefox ESR v68.12.0 (x86)
  • Mozilla Thunderbird v78.2.2 (x86) (customized; read notes)
  • Notepad++ v7.8.9 (x86)
  • Pale Moon v28.13.0
  • Pale Moon v28.13.0 (x86)
  • Spark v2.9.2 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.4.0 (x86)
  • VLC media player v3.0.11
  • WinSCP v5.17.7 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to sysadmin [link] [comments]

PDQ Deploy packs v72.0.0 (2020-09-18)

Background

This is v72.0.0 (v71.0.0, v70.0.0, v69.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.25 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v20.012.20041
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.433 (Chrome)
  • Adobe Flash Player v32.0.0.433 (Firefox)
  • Adobe Flash Player v32.0.0.433 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • FileZilla Client v3.50.0
  • Gimp v2.10.20 (x86)
  • Google Chrome Enterprise v85.0.4183.102
  • Google Chrome Enterprise v85.0.4183.102 (x86)
  • Google Earth Pro v7.3.3
  • Java Development Kit 8 Update 261
  • Java Development Kit 8 Update 261 (x86)
  • Java Development Kit 11.0.7
  • Java Runtime 8 update 261
  • Java Runtime 8 update 261 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v7.0.1
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v80.0.1
  • Mozilla Firefox v80.0.1 (x86)
  • Mozilla Firefox ESR v68.12.0
  • Mozilla Firefox ESR v68.12.0 (x86)
  • Mozilla Thunderbird v78.2.2 (x86) (customized; read notes)
  • Notepad++ v7.8.9 (x86)
  • Pale Moon v28.13.0
  • Pale Moon v28.13.0 (x86)
  • Spark v2.9.2 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.4.0 (x86)
  • VLC media player v3.0.11
  • WinSCP v5.17.7 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to pdq [link] [comments]

Secure Your Digital Assets with a Safe Deposit Box

Cryptocurrency, Dubbed By Some As Digital Gold, Has Been Making Great Changes In The Global Investment Landscape Over The Past Decade. Digital Assets Such As Bitcoin, Ethereum, And XRP Represent A New Asset Class That’s Is Fast Becoming An Alluring Addition To Investor Portfolios Worldwide.
However, Just Like Any Investment Option, There Are A Number Of Potential Risks Associated With Digital Assets. Let’s Discuss How You Can Help Secure Your Digital Assets Through The Use Of A Safety Deposit Box.
Why Are Digital Assets Alluring?
Part Of The Appeal Of Cryptocurrency Is That Unlike Fiat Money, Its Value Is Defined By People’s Demand, It Cannot Be Manipulated By Governments, They’re Accessible Worldwide, And They Are Highly Secure.
Moreover, They Are Supplied In Limited Quantities And You Cannot Simply Print More If It, They Cannot Be Copied Or Altered, And The Transactions Made Are Irreversible.
In Addition, Investors Lean Towards Digital Assets Because Of The Transparency That Blockchain Provides And Because Anyone Who Has Access To The Internet And Has Funds To Spare, Is Able To Make An Investment In It.
Digital Investments Have Security Risks
However, Given The Nature Of Cryptocurrency, It Is Still Open To Security Risks Such As Hacking And Theft.
While Blockchains Have Long Been Giving Investors Peace Of Mind With The Security It Provides To Cryptocurrency, New Reports Are Suggesting That They Aren’t As Safe As They Used To Be.
There Are Also Reports Of Cryptocurrency Theft Which Begs The Question: How Do We Keep A Watchful Eye Over Our Digital Assets?
Cold Storage To Minimize Your Security Risk
In Order To Make Digital Assets Safe From The Threats Of Security Risks, It’s Important To Understand How To Properly And Securely Store Them. One Of The Most Popular Security Options Available For Crypto Investors Today Is Known As Cold Storage.
Cold Storage Or Cold Wallets Allow You To Store Your Private Keys To Your Digital Assets Offline And Away From Hackers. Cold Storage Usually Comes In Two Formats—Hardware Wallets Or Paper Wallets.
Hardware Wallets Are USB Drives That Hold Private Keys. They Are A Go-To Option For Investors Since They Are Lightweight And Easy To Carry, Even If You’re On The Move.
On The Other Hand, Paper Wallets Are Pieces Of Paper That Contain A Wallet’s Private Keys. These Usually Contain QR Codes And Are Commonly Used To Store Digital Assets For Long Periods Provided That They Are Housed In A Safe Deposit Box Away From Damage.
Private Vaulting Facilities Are Your Digital Asset Solution
Just Like Your Physical Assets, You Wouldn’t Want To Store Your Cold Storage At Home Under The Mattress Or Between Your Floorboards. That’s Why At Reputable Private Vaulting Facilities, Safe Deposit Boxes Are Offered That Solve Your Cold Storage Needs For Your Cryptocurrency Wallets.
Private, World-Class Facilities Utilise Multiple Physical And Biometric Layers Of Security, So Your Digital Assets Remain Completely Safe From The Threats Of Hacking, Theft As Well As Natural Disasters Such As Floods And Fires. Premium Establishments Also Use Facial Recognition To Enable Access To Your Private Vault, Along With Many Physical Barriers To Securely Protect Your Assets.
This Includes Multiple Mantraps, A Secure PIN Code, Staff Oversight, Day Gate Entry And A UL Rated Vault. Lastly, As A Customer, You Possess The Only Set Of Keys Which Allow Access To Your Safe Deposit Box. With All This In Mind, What More Could You Possible Need To Secure Your Digital Assets With A Safe Deposit Box?
submitted by shrutijaiswal07 to u/shrutijaiswal07 [link] [comments]

The Different Types of Crypto Wallets

Cryptocurrency wallet is a set of private and public keys that validates the ownership of a digital asset (e.g. Bitcoin), and allows the wallet owner to send and receive digital assets or even store them. There are several types of wallets that can store your crypto holdings, some more secure than other, some are easily accessible and some are dedicated to certain assets. There are two types of wallets, Hot wallets and Cold wallets. The hot wallets are connected to the internet which makes transfers of coins and tokens faster and on hand, yet are more susceptible to viruses and hackers. The cold wallet refers to the cryptocurrency wallets that are offline. Generally cold storage is more secure, but are limited to a selection of coins and tokens you can store.
Software Wallets
Software wallets, as the name suggests, are downloaded and installed on desktops and laptops; they reside on a desktop which can only be accessed on that device where they are installed. They do provide a good level of security but many things could happen to your device, such as viruses or a hardware issue which could deny you access to the wallet, so its recommended to export your wallet private keys and store your login and password on a USB stick or on another device. You can re-install the software on a new device and use your login/password along with the exported private keys to access your funds. One of the most popular software wallets available for free is Exodus were you can store over a 100 cryptocurrency assets.
Paper Wallets
One of the first crypto wallets 1st used in the early 2010s which contains your wallet address, private keys and a QR code representing these keys, which eases the transfer and receiving of coins or tokens. Rather than typing each letter and number of the address which could be hectic, one can just scan the QR code and request or receive the asset. Paper wallets ensure security by preventing your private keys from being exposed online upon creation as its stored physically and not on a computer or online. Theoretically it is strong but physically it is weak, it’s great to have a free wallet that never exposes your private keys online at any point. A paper wallet is not made from a strong and durable material such as metal or plastic, paper can easily tear, burn, the print can fade away from sun exposer, it can get wet and even get lost. Therefore, many have considered this option of the past and are utilizing other safer options to store their cryptos. Here you can create your own paper wallet via the wallet generator.
Mobile/App Wallet
Mobile wallets are considered to be the most popular and commonly used type of wallets; they are apps installed on mobile devices and their main advantage is the swift accessibility to funds. Accessing a bunch of features such as sending, receiving, storing, spending. The user-friendly mobile wallet app like crypto.com has multiple services built-ins, you can do all the functions mentioned above, and you also have the option to stake your cryptos and earn profit, you can buy and trade cryptos to add to your existing portfolio at low fees and even request for a loan.
Many upcoming coins and tokens have used 3rd party wallets to store their coins or even have no supported wallets at the early stage which makes them fully dependent of exchanges to store their coins or tokens. Solid crypto projects typically build their own wallets at an early stage; during or post (ICO, IEO, public and private sale) when they distribute their coins/tokens to users. iOWNX is one of the projects that built a dedicated wallet where you can store both Ethereum and iOWN Tokens with several security measures to protect your assets. You can install the wallet app on both Apple and Android for free.
Hardware Wallet
Known as a “Cold Wallet” which is a physical device and considered to be the safest wallet. Hardware wallet securely stores your private and public keys and typically looks like a USB drive and is resistant to computer viruses. Long term crypto holders prefer a cold wallet as it remains offline most of the time. The wallets are made of metal and hard plastic with an input screen to insert your pin number and in case you lose the device, you can purchase another one and insert your 24-paraphrases known as seed key which was created on your previous device, and access your funds. There are several hardware wallets available in the market; the 2 most popular ones are the Nano Ledger that sell devices from $36 to $148 and the Trezor Wallet which goes for around the same price bracket.
Exchange Wallets
Exchange wallets access blockchain through a browser interface without having to download or install any software. The advantage of the exchange wallets is the ease of accessibility to funds if you are an active trader and require direct access to your funds to be able to trade, rather than transferring coins and tokens from a different wallet which could take some time and fees that disables you to instantly trade at a certain price. The downside of storing your cryptos on an exchange wallet is that some service providers hold and manage the wallet’s private keys on your behalf. Although this may sound more convenient for inexperienced users, it is surely not the best practice. When using cryptocurrency exchanges, you should consider that they provide a high security feature and protection tools such as device management, multi-factor authentication, anti-phishing code, and withdrawal address management. It is highly recommended to store the majority of your coins and tokens in a safer wallet and keep some on the exchange for trading purposes.
There are many types of wallets to choose from to securely store your cryptocurrencies, yet there is not a perfect wallet in existence. Your personal needs and requirements will ultimately guide you to the type of wallets that fits your need. If you are looking for a quick “send and receive” in a few taps then mobile app wallets could be an option. If you are more of a “hodler” and believe in long term store value then Hardware wallets could be the wallet for you. Presuming that you are a swing or an active crypto trader which requires your funds to be available on demand, then storing it on trading platforms and exchanges is convenient, as you can trade your coin or tokens for others and vice versa, instantly without the need to transfer, send and unlocking wallets to access your funds (which requires a bit of time and gas fees).
We hope that you found this guide helpful and that you will be able to find the right crypto wallet that fits your requirement. For more information, you can check out our video “Intro to Crypto Wallets“ which covers in details all types of wallets.
submitted by Iowntoken to u/Iowntoken [link] [comments]

PDQ Deploy packs v71.0.0 (2020-06-12)

Background

This is v71.0.0 (v70.0.0, v69.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.25 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v20.009.20063
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.387 (Chrome)
  • Adobe Flash Player v32.0.0.387 (Firefox)
  • Adobe Flash Player v32.0.0.387 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • FileZilla Client v3.48.1
  • Gimp v2.10.20 (x86)
  • Google Chrome Enterprise v83.0.4103.97
  • Google Chrome Enterprise v83.0.4103.97 (x86)
  • Google Earth Pro v7.3.3
  • Java Development Kit 8 Update 241
  • Java Development Kit 8 Update 241 (x86)
  • Java Development Kit 11.0.7
  • Java Runtime 8 update 241
  • Java Runtime 8 update 241 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.4.4
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v77.0.1
  • Mozilla Firefox v77.0.1 (x86)
  • Mozilla Firefox ESR v68.9.0
  • Mozilla Firefox ESR v68.9.0 (x86)
  • Mozilla Thunderbird v68.9.0 (x86) (customized; read notes)
  • Notepad++ v7.8.7 (x86)
  • Pale Moon v28.10.0
  • Pale Moon v28.10.0 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.4.0 (x86)
  • VLC media player v3.0.10 -- ! NOTE: Switched to x64 only (dropped x86 package)
  • WinSCP v5.17.6 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force recycle bin to empty for every user on target)
  • Enable Remote Desktop (enables Remote Desktop on the target machine)
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to sysadmin [link] [comments]

How to Cold Store Your Cryptocurrency for Safekeeping

According to CipherTrace (which specializes in litigation tools and services for cryptographic markets), between 2018 and 2019, the amount of theft from cryptographic wallets exceeds $2 billion. Thefts and break-ins are caused by a variety of reasons: simple incompetence in cryptographic storage, as well as by companies that provide storage services. It is not unusual for holders of crypto currency to lose access to their wallets by themselves, one of the last known cases occurred in Ireland: ,57 million dollars couldn’t be confiscated from a detained drug dealer, which were stored in bitcoins. The problem was that the wallets keys were lost.
The most secure way is a cold storage — all account data and private keys are kept offline and all transactions are manual. This storage method is great because it is fully protected from hacking and interception of data, but it is not suitable for those who make daily transfers of cryptocurrency, it is simply inconvenient.
If you compare “cold and hot” wallets, you can give a simple example: A hot wallet can be compared to a wallet that can be lost and stolen. But you can always access your funds. A cold wallet is safe, and access to it is not permanent. You can also take or put money, but it will require a special code.
In this article we will tell you about the most popular types of cold wallets and we will analyze their pros and cons.

Types of cold wallets

All cold wallets have one common thing — the data is stored offline. However, there are several types of cold wallets, which differ in the degree of protection, physical embodiment and cost of the wallet.

Desktop wallet

Desktop wallets are also known for a high level of protection, in addition to the ability to store crypto currency offline. There are so-called “light” wallets weighing less than 1 gb, and “heavy” wallets weighing more than 1 gb. Two of the desktop wallets can be distinguished:

Exodus Wallet

Multicurrency wallet. It was created in 2016 and supports more than 100 crypto currencies, since 2019 has a phone application. The wallet allows you to export private keys that are created locally, and then to upload them back. Private keys can be discounted to removable media and downloaded only when the transaction is completed. If the user decides to leave private keys on the same computer where the wallet is located, keys are securely encrypted. In order to use your wallet ,there is no need to register or to download the entire blockchain — synchronization is taking place online. In addition to wallet services Exodus Wallet provides an integrated crypto-exchange. The installation file weighs 85 mb.

Bitcoin Core

Bitcoin Core is the official Bitcoin wallet. The size of the wallet is 160 gb, but according to the developers of the company, it’s better to give it a separate winchester with the size of 500 gb. From the security viewpoint, it’s suggested to install a security code or a seed phrase, which may consist 8 words. It is also suggested to copy wallet.dat file. — private wallet key, which will allow you to restore access to your funds.

Hardware wallets

Appears like a regular flash drive with an interface (screen, control keys). This wallet can safely store information about the balance and keys, full functionality is available only when connected to a computer, but the latest models have a special button that allows you to confirm the transaction without connecting to a PC. Each time the device offers to generate a new code-password to confirm the transaction, which significantly reduces the probability of hacking. After generating the code, you need to set a mnemonic phrase (seed) — it consists of 12 or 24 words, which are not related to each other in any way. Such type of wallets has a special protection system that allows you to connect even to potentially infected PCs. The wallets themselves won’t be affected by malware.
The obvious cons of hardware wallets are the following:
  1. It is also possible to lose a device that is so small in size.
  2. A physical device can easily fail due to a variety of damages.
  3. It is not recommended to buy such wallets from “hand”, even from friends, as they can be pre-installed with malware.
As you can see, storing crypto currency with a hardware wallets is very safe and secure, however you should take care about the device. Many people who hold a large amount of crypto currency, in order to not to lose a hardware wallet, store it in a safe deposit box, depriving someone of access to it.

Popular Hardware Wallets models

Trezor One

The first hardware wallet produced in 2013 by the Czech company Satoshi Labs. The device has an OLED display with a pin code, public addresses and Seed phrases. Trezor One has won recognition from users due to its multicurrency and affordable price ($65), it is also considered one of the most secure hardware wallets.
Ledger Nano S
The wallet was released in 2016 by the French company Ledger SAS. Distinctive feature from the other wallets, is the Secure Element controller, which meets banking standards and is certified CC EAL 5+. Also, in order to work with each crypto currency you need to install a special application for this currency on the device, it is not quite convenient, however more secure. The average price of the device is $85.
KeepKey
The purse was released in 2015 in the U.S.. Distinctive feature is OLED display — 256 by 64 pixels. Due to this, you can fully see both the address of the wallet, and the seed phrase. Also, the wallet has a built-in exchange service ShapeShift — an opportunity to exchange crypto currency without entering the exchange. The average price of the device is $50.
BitBox01
Ionos Schnelly’s wallet was invented in Switzerland. In size it’s almost the most compact among all representatives of the hardware wallets. A distinctive feature is the availability of a backup — the card can be multiplied and kept in several places, by analogy with the seed-phrase. In November 2020, support for these wallets will be discontinued, but all owners will be given a 30% discount on the new model. The average price of the device is $55.
CoolWalletS
Developed in Taiwan by CoolBitX, which has long been manufacturing components for Visa and MasterCard. As well as Ledger Nano S has a security standard CC EAL 5+. This wallet works only through smartphones, connecting to them through Bluetooch. The average price of the device is $100.

Paper Wallet

In the age of technological process, plain paper has become a rather reliable method for storing cryptocurrency. With the help of special services, such as bitaddress.org, you can generate public and private keys, then writing them down on paper. You can also print keys as a QR code. To accept transactions with such a wallet, you provide the sender with a public key. To access the funds, you need to find any online wallet that supports your crypto currency. Enter your private key into your online wallet, thus integrating your funds into the system. However, you should understand that after this procedure your wallet will become “hot”.
The best of this storage method — paper wallet is free, its safety depends only from you. When storing a paper wallet to protect it from the fire, water and aging. Also, do not tell other people about where your paper wallet is hidden.
The disadvantages of this storage:
  1. If your wallet is lost, it will be impossible to restore it.
  2. Exposed to a physical damage.
  3. After sending the transaction, you will have to create a new cold wallet.

Offline transaction signature

For this storage method, you will need two PCs. The essence is that the secret keys are never in contact with the Internet, but are stored digitally. Offline transaction method is suitable for people who do not make a daily transactions and have an access to two devices. The process is below:
  1. A hot wallet is installed on a PC with the Internet. The transaction is created without entering private keys and authorization.
  2. The file with transaction is copied and transferred to the second PC without Internet, where private keys are stored.
  3. The transaction is signed offline, copied and transferred back to the PC with the Internet.
In fact, you can do it with one PC and a USB drive. The USB drive will store private keys. Also, you can create a transaction without entering private keys and authorization, after disconnecting the Internet, connect the flash drive, sign the transaction, turn on the Internet. In this case, you should take care of the antivirus system.
The disadvantages of this method:
  1. Using two PCs or a USB drive involves a lot of actions, which is time consuming.
  2. You need to back up your keys in case your PC or flash drive fails.

Multi-signature wallet

This method implies the creation of a wallet, which can be only withdrawn on condition that the transaction is verified by a predetermined number of users. The maximum number of users who can hold private keys of the wallet- is 15. It is considered as one of the most reliable ways of storage, in fact private keys are not only stored offline, but also divided between different people. Often the wallet with multisignatures is used by large crypto-companies, whose management believes that individually employees can not spend the budget. Moreover, when creating this wallet, the number of required multisignatures is minimal. For example: if one of the six keys is lost, the remaining ones will be enough for the transaction.
The disadvantages of this storage:
  1. If most of the keys are lost, access to the funds cannot be restored.
  2. You will not be able to make transactions on your own without the participation of other key holders.

Private Key Fragmentation

The private wallet key consists of 64 symbols. The key is divided into several fragments. They don’t represent anything separately, but if you put all the fragments together, you can access the funds. The key fragments are similar to multisignatures, but in this case you don’t need a multisig-wallet, and the whole process can be done manually.
The disadvantages of this method:
  1. If one fragment is lost, access to funds will be lost.
  2. The maximum level of protection can only be reached when key fragments are distributed to different places, for example: bookshelf, safe deposit box, car. If you divide the key fragments and put them in different boxes — the required level of protection will not be achieved.
When writing down key fragments on paper, protect the key from fire, water and aging.

Conclusion

Digital currencies are not physically expressed and exist only in the digital code, so cold wallets that doesn’t have an access to the Internet, protect cryptocurrencies from the most important and common problem — hacker theft. However, holders of cold wallets need to understand that the safety of a private key depends only on them. There are different ways to store private keys outside the network, but each of them makes it difficult for the user to make transactions.
Hardware wallets that have been specifically designed for this purpose are considered to be the best option for storing cryptocurrencies. With their help it is possible both to store funds off the network and to make transactions easily, without risking the safety of a private key. If you use other cold wallets, it is recommended to combine them with hot wallets. Keep the required crypto currency for daily transfers on hot wallets, and keep all other crypto on cold wallets.
Please don’t forget to follow us on Telegram and stay updated!
YOUR CRYPTO BOSS
submitted by yourcryptoboss19 to u/yourcryptoboss19 [link] [comments]

PDQ Deploy packs v71.0.0 (2020-06-12)

Background

This is v71.0.0 (v70.0.0, v69.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.25 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v20.009.20063
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.387 (Chrome)
  • Adobe Flash Player v32.0.0.387 (Firefox)
  • Adobe Flash Player v32.0.0.387 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • FileZilla Client v3.48.1
  • Gimp v2.10.20 (x86)
  • Google Chrome Enterprise v83.0.4103.97
  • Google Chrome Enterprise v83.0.4103.97 (x86)
  • Google Earth Pro v7.3.3
  • Java Development Kit 8 Update 241
  • Java Development Kit 8 Update 241 (x86)
  • Java Development Kit 11.0.7
  • Java Runtime 8 update 241
  • Java Runtime 8 update 241 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.4.4
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v77.0.1
  • Mozilla Firefox v77.0.1 (x86)
  • Mozilla Firefox ESR v68.9.0
  • Mozilla Firefox ESR v68.9.0 (x86)
  • Mozilla Thunderbird v68.9.0 (x86) (customized; read notes)
  • Notepad++ v7.8.7 (x86)
  • Pale Moon v28.10.0
  • Pale Moon v28.10.0 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.4.0 (x86)
  • VLC media player v3.0.10 -- ! NOTE: Switched to x64 only (dropped x86 package)
  • WinSCP v5.17.6 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to pdq [link] [comments]

Choosing The Best Multi-Currency Wallet For Crypto in 2020

Crypto differs from fiat in terms of storage. It is saved not in some kind of virtual bank, but directly in the blockchain. The coins, information on the distribution of digital assets between users, transaction history – all this data is stored by the chain. Such data cannot be changed or erased in any way. And without a crypto wallet, you cannot manage your assets.

Let’s have a look at different types of crypto wallets.

A cryptocurrency wallet stores your “private” and “public” keys used to send and receive various crypto tokens. The interface and design of the programs help users to get all the necessary information about their digital savings.
There are two types of wallets:

How do cryptocurrency wallets work?

Cryptocurrency wallets are not designed to actually store digital assets; instead, they provide the tools necessary to interact with the blockchain network. The wallet includes a public address, which is an identifier in the form of a set of letters and numbers. This address is a kind of location on the blockchain where you can send coins. You can share your public address with another user to receive funds, but you should never show your private key to anyone.
A private key provides access to your cryptocurrencies, regardless of which wallet you use. Thus, even if your computer or smartphone was compromised, you can still access your funds from any other device, provided that you have the appropriate private key (or seed phrase).

Types of wallets

Web wallet

This type of wallet is suitable for beginners, since it does not require the purchase of devices, software installation, or downloading the blockchain. It is enough for the user to register on the site. Web wallets are simple and convenient to use, they do not take up space on the HDD and are constantly synchronized with the blockchain network, even when your computer is offline.
Cryptopay enables customers to transfer money directly between their Cryptopay wallet and SEPA (Single Euro Payments Area) bank account, store their funds safely in a multi-coin portfolio, protected by two-factor authentication to increase security.
Coinbase is a trading service that many retailers use to receive digital currencies from sales. Private keys are stored on the server, and client funds are stored on a cold wallet. You can enable two-factor authentication and install the smartphone app.

Desktop wallet

The local wallet is installed on the hard drive and loaded with the operating system. Such wallets are divided into “thick” (full-node clients) and “thin” (light-node clients). Thick ones can take up to hundreds of gigabytes of hard drive space. Thin local wallet is actually a program that makes requests to the blockchain through a trusted site.
Bitcoin Core is a Bitcoin wallet created by the Bitcoin Foundation. If you want to get a truly secure place for your digital assets, choose this thick desktop wallet.
Exodus is a universal thin crypto wallet. It supports 100+ altcoins and has a built-in exchange service. Also, Exodus can interact with the Trezor Crypto Hardware Wallet.

Mobile phone and browser wallets

Mobile wallets are available through special applications. You can use them for shopping in real stores where crypto is accepted – just like ApplePay.
Benefits of Mobile Wallets:
Disadvantages of mobile wallets:
Coinomi is a multi-currency application with two integrated exchange services (Shapeshift and Changelly). The wallet supports 100+ virtual coins, the keys are stored exclusively in the application.
Browser wallet is an extension for Chrome and Opera browsers. It is very easy to use: you just enter seed phrases and get access to the savings.
The Jaxx extension for Chrome from the team of developers of the browser wallet KryptoKit, supports not only Bitcoin, but Ethereum as well.

Hardware wallet

This is the most reliable option for saving virtual assets. They look like ordinary USB flash drives. The user inserts a USB, logs on a wallet program by entering a password and thus gets access to the funds. All operations are performed not in the system, but directly on the flash drive itself, which eliminates extraneous access to data.
Trezor wallet supports most of the top coins, it can be synchronized with the MyEtherWallet online wallet, as well as Chrome and Firefox browsers to get access to crypto funds.
Ledger Nano S is miniature, safe, and easy to use and has several levels of protection. Asset management is performed through the Ledger Manager utility.

Paper wallet

A paper wallet is a piece of paper that usually has QR codes that can be quickly scanned to get the address to a crypto account. The main advantage of services like BitAddress and Bitcoin Paper Wallet is that the keys are actually stored offline, which makes them immune to hacker attacks. The main drawback, however, is that the paper wallet can be stolen or lost.

Which wallet is the safest?

An offline crypto wallet is the most reliable one. You can install a local wallet on a PC that is not connected to the Internet and store your digital assets on it, but this is not very convenient if you need to quickly complete a transaction.

Conclusion

The choice depends on how you plan to use your tokens. Small amounts of crypto can be stored on thin local or Internet wallets, and for long-term storage of large amounts, it is better to get thick or hardware wallets. In any case, remember to strictly observe all security measures.
submitted by CoinjoyAssistant to u/CoinjoyAssistant [link] [comments]

PDQ Deploy packs v69.0.0 (2020-02-06)

Background

This is v69.0.0 (v68.0.0, v67.0.0, v66.0.0, v65.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.15 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v19.021.20058
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.321 (Chrome)
  • Adobe Flash Player v32.0.0.321 (Firefox)
  • Adobe Flash Player v32.0.0.321 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • CutePDF v3.0 (PDF printer) (x86) // REMOVED; Since Windows natively supports PDF printing now there's no reason to keep this in the pack
  • FileZilla Client v3.46.3
  • Gimp v2.10.14 (x86)
  • Google Chrome Enterprise v80.0.3987.87
  • Google Chrome Enterprise v80.0.3987.87 (x86)
  • Google Earth Pro v7.3.2
  • Java Development Kit 8 Update 231
  • Java Development Kit 8 Update 231 (x86)
  • Java Development Kit 11.0.6
  • Java Runtime 8 update 231
  • Java Runtime 8 update 231 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.4.0
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v72.0.2
  • Mozilla Firefox v72.0.2 (x86)
  • Mozilla Firefox ESR v68.4.2
  • Mozilla Firefox ESR v68.4.2 (x86)
  • Mozilla Thunderbird v68.4.2 (x86) (customized; read notes)
  • Notepad++ v7.8.4 (x86)
  • Pale Moon v28.8.2.1
  • Pale Moon v28.8.2.1 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.2.4 (x86)
  • VLC media player v3.0.8 (x86)
  • WinSCP v5.15.9 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source, although donations are of course appreciated since all work done on them is in my spare time for free. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to sysadmin [link] [comments]

PDQ Deploy packs v70.0.0 (2020-03-31)

Background

This is v70.0.0 (v69.0.0, v68.0.0, v67.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.15 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v20.006.20042
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.344 (Chrome)
  • Adobe Flash Player v32.0.0.344 (Firefox)
  • Adobe Flash Player v32.0.0.344 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • FileZilla Client v3.47.2.1
  • Gimp v2.10.18 (x86)
  • Google Chrome Enterprise v80.0.3987.149
  • Google Chrome Enterprise v80.0.3987.149 (x86)
  • Google Earth Pro v7.3.2
  • Java Development Kit 8 Update 241
  • Java Development Kit 8 Update 241 (x86)
  • Java Development Kit 11.0.6
  • Java Runtime 8 update 241
  • Java Runtime 8 update 241 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.4.2
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v74.0.0
  • Mozilla Firefox v74.0.0 (x86)
  • Mozilla Firefox ESR v68.6.0
  • Mozilla Firefox ESR v68.6.0 (x86)
  • Mozilla Thunderbird v68.6.0 (x86) (customized; read notes)
  • Notepad++ v7.8.5 (x86)
  • Pale Moon v28.9.0.2
  • Pale Moon v28.9.0.2 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.4.0 (x86)
  • VLC media player v3.0.8 (x86)
  • WinSCP v5.17.2 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source, although donations are of course appreciated since all work done on them is in my spare time for free. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to pdq [link] [comments]

PDQ Deploy packs v68.0.0 (2020-01-11)

Background

This is v68.0.0 (v67.0.0, v66.0.0, v65.0.0, v64.0.0, v63.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable all auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.15 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Pack list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v19.021.20058
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.303 (Chrome)
  • Adobe Flash Player v32.0.0.303 (Firefox)
  • Adobe Flash Player v32.0.0.303 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7128
  • CutePDF v3.0 (PDF printer) (x86)
  • FileZilla Client v3.46.3
  • Gimp v2.10.14 (x86)
  • Google Chrome Enterprise v79.0.3945.117
  • Google Chrome Enterprise v77.0.3945.117 (x86)
  • Google Earth Pro v7.3.2
  • Java Development Kit 8 Update 231
  • Java Development Kit 8 Update 231 (x86)
  • Java Development Kit 11.0.5
  • Java Runtime 8 update 231
  • Java Runtime 8 update 231 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.3.4
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Mozilla Firefox v72.0.1
  • Mozilla Firefox v72.0.1 (x86)
  • Mozilla Firefox ESR v68.4.1
  • Mozilla Firefox ESR v68.4.1 (x86)
  • Mozilla Thunderbird v68.4.1 (x86) (customized; read notes)
  • Notepad++ v7.8.2 (x86)
  • Pale Moon v28.8.1
  • Pale Moon v28.8.1 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.27
  • TightVNC v2.8.27 (x86)
  • UltraVNC v1.2.2.4 (x86)
  • VLC media player v3.0.8 (x86)
  • WinSCP v5.15.9 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CD-ROM's, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Integrity

In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.
If you find a bug or glitch, PM me or post it here. Advice and comments are welcome and appreciated.

Donations

These packs will always be free and open-source, although donations are of course appreciated since all work done on them is in my spare time for free. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to sysadmin [link] [comments]

What Is Bitcoin Private Key: Beginner’s Guide

What Is Bitcoin Private Key: Beginner’s Guide
Most of the people in this sub probably already know what the Bitcoin private key is and how it works, but there are many newcomers who do not fully understand all the technical aspects of it. I hope you guys will find it useful.

Bitcoin Private Keys: The Basics

Let’s start with some main principles.
  • A private key is functionally similar to a password to your email account. Unlike your email address, you never share it.
  • You need your private key to be able to receive the crypto someone sends you and to have access to your funds.
  • The BTC network does not store your private keys, they are generated and stored by the wallet software. There are different types of wallets.
IMPORTANT: The private key concept does not apply exclusively to Bitcoin. Other cryptocurrencies use it too.
Now, let’s see how a private key looks and works.

Bitcoin Private Key Definition

Bitcoin private key is an alphanumeric piece of code. It includes letters and numbers, just like your public address.
However, while a public address is like your plastic card number, a private key is like your CVC. You know, those secret three digits on the back of a card?
A private address is created in a random manner when you get a cryptocurrency wallet. The possibility of creating two identical private keys is almost zero, due to the sophisticated encryption algorithm, we apply for the purpose.
In the BTC network, a private key contains 256 symbols, as we obtain it using the SHA256 encryption algorithm. This function always returns 256 symbols, no matter the input.

Bitcoin private key in various formats, including WIF.

Wallet Import Format (WIF)

Using such a long string of code is inconvenient, so a private key is often presented in WIF (Wallet Import Format). It’s a shortened version that includes only 51 characters (numbers from 0 to 9 and letters in the range of A-F) and begins with 5.
Here is a Bitcoin private key example in WIF:
5Kb8kLf9zgWQnogidDA76MzPL6TsZZY36hWXMssSzNydYXYB9KF
WIF has a few advantages over a full BTC private key version. As we have said, it’s shorter and more convenient to use. Also, it contains special pieces of code that serve to check the address for typos and correct them automatically.
WIF associates with only one private key and can be easily converted back into it, using an established algorithm.

Encrypting Private Keys

If a key looks like WIF but starts with 6, it is an encrypted version of a private key. People encrypt keys to ensure an extra layer of protection. To obtain such a string of code, we apply another algorithm. To decode (decrypt) the key we need to enter the password that we set when we were encrypting it.

How Bitcoin Private Key Works

You probably know Bitcoin as a digital payment system. To explain how it works, it would be better to compare it to a web-messenger, with massages transferring value. These ‘value messages’ are BTC transactions.
And what role a private key plays in sending these financial messages?
Let’s take a look at a real-life example.

https://preview.redd.it/fgtn8h63veu41.png?width=1261&format=png&auto=webp&s=9855f9aba70ebe7ca1f02b32c160ae78b2b42400

Using Private And Public Keys For a Transaction

Imagine you are sending 1 BTC to your friend Bill. You create a transaction and indicate yourself as the sender and Bill as the receiver of this amount. Then, you will broadcast the transaction to make the Bitcoin network aware of it.
  1. You start by choosing a private key. Using a special encryption algorithm, you derive a public key from it. You send this public key to Bill.
  2. You create a message for Bill and sign it with your digital signature. To obtain it, you pass your private key through a special encryption algorithm and attach the resulting code to the message. Every signature is unique, and you can use the same private address to produce an infinite number of them.
  3. Bill receives your message, public key, and signature and passes it through a signature algorithm. If it’s the message you sent, the algorithm returns ok.
Why we need a digital signature in the first place? There are three reasons. First, it tells the recipient that the message is from the sender he knows. Second, a digital signature makes it impossible for the sender to deny he sent the message. Third, it confirms that no one has altered the message in transit.
Unlike a traditional signature, a digital one cannot be forged. To produce it, you have to possess a secret private key.
https://preview.redd.it/k8n0vcg4veu41.png?width=624&format=png&auto=webp&s=9ab6c0bc25c0a638c4d3bfdbf86056f5462aa7d0

Why Keeping Your Private Key Secret Is Important

As we have mentioned, anyone in possession of your private key can steal your funds anytime.
If your wicked colleague Alice gets your private key (because you carelessly left your paper wallet on your desk), she can use it to create a digital signature. She can then use that signature to sign a transaction that will look like yours for the network. For instance, Alice can send all your crypto to another address. You will never be able to cancel this transaction and you are highly unlikely to know that she made it.
For this reason, you should be very careful with your private keys. Never send it to anyone using a messenger, or an email client, or a social media channel. Don’t share photographs of your private key. Never store a private key in a Google Doc file.
Please note that some desktop wallet apps store your private key in a standard directory on your hard drive. This place is a honeypot for hackers who know you are a cryptocurrency user. That’s why it’s extremely important to have up-to-date anti-virus software installed on your device.
https://preview.redd.it/bg2zd50aveu41.png?width=723&format=png&auto=webp&s=0e692f5c73c7c68ea854342b7fbeaf6aaa62f71f
Also, you may encrypt this wallet file to make it immune to malware. Many wallet apps provide this option. You will have to set a password to decrypt the private key, and the hacker will have to break this password to do it. If the password is strong, it will be a really difficult and time-consuming task.

Where To Store Private Keys: Mobile, Desktop And Hardware Wallets

As we have mentioned, the Bitcoin network does not store these keys. Instead, wallet services do it.

Mobile Wallets

Some of them allow you to keep and protect your private key, others do it automatically, applying various safety measures like 2FA or encryption. Note that nobody is responsible for it, your bitcoins will be gone if the service is hacked.

Desktop Wallets

Desktop wallets may be a good option. They provide a BTC public and private keys in the format of a file that you can download and import. You can protect this file with a strong password and safely store it on a hard drive. Don’t forget about safe storage for this drive, too. For instance, use a bank vault for this purpose.

Cold (Hardware) Wallets

Hardware wallets are the safest ones. They are small USB devices designed to store your funds and private keys offline, away from anyone who could steal them. For this very reason, hardware (or cold) wallets are impossible to hack. If you accidentally lose, damage or destroy such a device, you can recover your BTC and private keys using a backup phrase. The best-selling models of hardware wallets are Tresor and Ledger Nano S, supporting several popular coins.

https://preview.redd.it/7wlozgvcveu41.png?width=803&format=png&auto=webp&s=9c438a47a47f6bb2ba5dbd4fdfba924e8c960f47

Paper Wallets

These wallets are sheets of paper with BTC private keys and public address printed on them. Paper wallets look pretty basic and not very innovational, but it’s a safe way to store your BTC-related sensitive data. The main reason is that they are not connected to the Internet and thus are unreachable for malware attacks. This format is also immune to many mishaps that can affect electronic devices. To create a paper wallet you use a special web service like WalletGenerator.

P.S. Check out our blog if you are interested in more articles on crypto and finance
submitted by EX-SCUDO to btc [link] [comments]

PDQ Deploy packs v67.0.0 (2019-10-22)

Background

This is v67.0.0 (v66.0.0, v65.0.0, v64.0.0, etc...) of our PDQ installers and includes all installers from the previous package with old versions removed.
All packages:
  1. ...install silently and don't place desktop or quicklaunch shortcuts
  2. ...disable auto-update, nag popup and stat-collection/telemetry "features" possible
  3. ...work with the free or paid version of PDQ Deploy but do not require it - each package can run standalone (e.g. from a thumb drive) or pushed with SCCM/GPO/etc if desired. PM me if you need assistance setting something like that up

Download

Primary:
Download the torrent.
Secondary: Download the self-extracting archive from one of the repos:
Mirror HTTPS HTTP Location Host
Official link link US-NY SGC-Hosting
#1 link link FR mxmod
Tertiary:
Plug one of these keys into Resilio Sync (formerly called "BT Sync") to pull down that repository:
- BTRSRPF7Y3VWFRBG64VUDGP7WIIVNTR4Q (Installer Packages, ~2.15 GB) - BMHHALGV7WLNSAPIPYDP5DU3NDNSM5XNC (WSUS Offline updates, ~12.00 GB) 
Make sure the settings for your Sync folder look like this (or this if you're on v1.3.x). Specifically you need to enable DHT.
Quaternary: (source code)
The Github page contains all scripts and wrapper files used in the pack. Check it out if you want to see the code without downloading the full binary pack, or just steal them for your own use. Note that downloading from Github directly won't work - you need either this provided pack or go manually fetch all the binaries yourself in order to just plug them in and start working.

Package list

Installers:
(Updates in bold. All installers are 64-bit unless otherwise marked)
  • 7-Zip v19.00
  • 7-Zip v19.00 (x86)
  • Adobe Acrobat Reader DC v19.008.20071
  • Adobe AIR v32.0.0.125
  • Adobe Flash Player v32.0.0.270 (Chrome)
  • Adobe Flash Player v32.0.0.270 (Firefox)
  • Adobe Flash Player v32.0.0.270 (IE / ActiveX)
  • Apple iTunes v12.5.1.21
  • CDBurnerXP v4.5.8.7042
  • CutePDF v3.0 (PDF printer) (x86)
  • FileZilla Client v3.45.1
  • Gimp v2.10.12 (x86)
  • Google Chrome Enterprise v77.0.3865.120
  • Google Chrome Enterprise v77.0.3865.1205 (x86)
  • Google Earth Pro v7.3.2
  • Java Development Kit 8 Update 231
  • Java Development Kit 8 Update 231 (x86)
  • Java Development Kit 11.0.5
  • Java Runtime 8 update 231
  • Java Runtime 8 update 231 (x86)
  • Java Runtime 10.0.2
  • KTS KypM Telnet/SSH Server v1.19c (x86)
  • LibreOffice v6.2.7 ! -- NEW
  • Microsoft .NET Framework v3.5.1 SP1 (x86)
  • Microsoft Silverlight v5.1.50918.0
  • Microsoft Silverlight v5.1.50901.0 (x86) ! -- REMOVED
  • Mozilla Firefox v69.0.3
  • Mozilla Firefox v69.0.3 (x86)
  • Mozilla Firefox ESR v68.1.0
  • Mozilla Firefox ESR v68.1.0 (x86)
  • Mozilla Thunderbird v68.1.2 (x86) (customized; read notes)
  • Notepad++ v7.8.0 (x86)
  • Pale Moon v28.7.1.0
  • Pale Moon v28.7.1.0 (x86)
  • Spark v2.8.3 (x86)
  • TightVNC v2.8.23
  • TightVNC v2.8.23 (x86)
  • UltraVNC v1.2.2.4 (x86)
  • VLC media player v3.0.8 (x86)
  • WinSCP v5.15.5 (x86)
Utilities:
  • Clean Up ALL Printers (purge all printers from target)
  • Clean Up Orphaned Printers (remove non-existent printers from the spooler)
  • Empty All Recycle Bins (force all recycle bins to empty on target)
  • Enable Remote Desktop
  • Install PKI Certificates
  • Reboot (force target reboot in 15 seconds)
  • Remove Adobe Flash Player (removes all versions)
  • Remove Java Runtime (removes JRE versions 3-11 using all means necessary)
  • Remove Microsoft Silverlight (removes all versions of Silverlight)
  • Temp File Cleanup
  • USB Device Cleanup. Uninstalls non-present USB hubs, USB storage devices and their storage volumes, Disks, CDROMs, Floppies, WPD devices and deletes their registry items. Devices will re-initialize at next connection

Instructions

  1. Import all .XML files from the \job files directory into PDQ deploy (it should look roughly like this after you've imported them).
  2. Copy all files from the \repository directory to wherever your repository is.
  3. All jobs reference PDQ's $(Repository) variable, so make sure it's set in preferences.

Package Notes

  1. Read the notes in the PDQ interface for each package, they explain exactly what that installer does. Basically, most packages use a .bat file to accomplish multi-step installs with the free version of PDQ. You can edit the batch files to see what they do; most just delete "All Users" desktop shortcuts and things like that. changelog-v##-updated-.txt has version and release history in addition to random notes where I complain about things like Reader DC and how much of a pain it is to build packages for.
  2. Thunderbird:
    • Thunderbird is configured to use a global config file stored on a network share. This allows for settings changes en masse. By default it's set to check for config updates every 120 minutes.
    • You can change the config location, update frequency, OR disable this behavior entirely by editing thunderbird-custom-settings.js.
    • A copy of the config file is in the Thunderbird directory and is called thunderbird-global-settings.js
    • If you don't want any customizations, just edit Thunderbird's .bat file and comment out or delete all the lines mentioning the custom config files.
  3. Microsoft Offline Updates - built using the excellent WSUS Offline tool. Please donate to them if you can, their team does excellent work.

Developer Contact & Pack Integrity

If you find a bug or glitch, PM me, post it here, or you can reach me anytime on Keybase. Advice and comments are welcome and appreciated.
In the folder \integrity verification the file checksums.txt is signed with my PGP key (0x07d1490f82a211a2, pubkey included). You can use this to verify package integrity.

Donations

These packs will always be free and open-source, although donations are of course appreciated since all work done on them is in my spare time for free. If you feel like giving away your hard-earned cash to random strangers on the internet you may do so here:
Patreon
Bitcoin: 1Bfxpo1WqTGwRXZKrwYZV2zvJ4ggyj9GE1
Monero (preferred):
46ZUK4VDLLz3zapDw62UaS71ZfFBjH9uwhc8FeyocPhUHHsuxj5zfvpZpZcZFHWpxoXD99MVt6PnR9QfftXDV8s6CFAnPSo
"Do not withhold good from those to whom it is due, when it is in your power to act."
submitted by vocatus to sysadmin [link] [comments]

How secure is my plan: I want to generate a long-term cold storage wallet using Ian Colemans tool and regular dice

Hi there!
I have been into Bitcoin for a few years now, but I took a break from the topic and didn't keep up to date with the latest technology. When I was still active, paper wallets were still the hot new stuff!
I do own a Trezor Model T, but I want to be EXTRA paranoid and not trust the hardware wallet to generate a wallet for me. The chances of this are slim, but what if the hardware was modified to generate a wallet that another party has access to?
Now, I want to generate a highly secure long-term cold storage wallet for a relatively large amount of Bitcoin and only rely on myself. I already read quite a bit about the topic, but because of my inexperience I have a hard time understanding just how secure the method really is.
Then I found this video:
https://www.youtube.com/watch?v=j5nejoEGWFw
He generates the mnemonic by rolling dice and putting in the results as entropy into Ian Coleman's tool. From that, I created a plan that currently looks like this:
  1. How do I use the test vectors to validate Ian Colemans tool and where can I find them?
  2. Are regular dice rolls "secure enough" for this in terms of entropy and the guess of somebody guessing it?
  3. Does it make sense to use some more sources of randomness, like keyboard mashing and data from https://www.random.org that I have copied offline?
  4. Can I simply import the generated mnemonic into a hardware wallet like Trezor?
  5. Is the mnemonic (24 words) really enough to restore the wallet or do I need something else?
  6. Are change addresses handled with this or will some spare change be sent to other addresses I (maybe) dont control?
  7. Is there any way somebody could get access to my wallet if I only access it from the Trezor Wallet website and without exporting the private keys anywhere?
Thank you guys for your help, I really appreciate it! :)
submitted by climateimpact827 to BitcoinBeginners [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

TUTORIAL How to Store Bicoins Offline (step by step) - YouTube HOW TO made Bitcoin On USB Stick Guide 2019 Bitcoin using Linux boot USB and secondary for a cold storage wallet HOW TO SAFELY STORE BITCOIN OFFLINE WITH CRYPTO WENDY O USB Bitcoin Miner - The Power of 1000's Computers - YouTube

Eine Offline-Wallet, auch "Cold Storage" genannt, bietet das höchste Maß an Sicherheit für Ihr Erspartes. Hierbei wird eine Wallet an einem gesicherten Ort gespeichert, der keine Verbindung zum Internet hat. Ordentlich umgesetzt bietet sie einen sehr guten Schutz vor Sicherheitslücken. Es empfiehlt sich auch, Offline-Wallets in Verbindung mit Sicherheitskopien und Verschlüsselung zu ... The first step to getting your Bitcoin into cold storage is creating an offline Bitcoin address. This address will have both a public and private key-pair which never goes online (until you’re ready to spend it). With this guide, we will show you how to make a free cold storage wallet using the paper wallet method. Setting up a paper wallet . Setting up your cold storage paper wallet is ... Cold storage fixes this potential problem by keeping the private keys completely offline. Once a transaction is initiated—online or offline—it is transferred to an offline device or medium. Some of these include: An external hard drive; A computer that’s not connected to the internet; A USB flash drive; A piece of paper; A Hardware wallet Bitcoin Offline Storage Just make sure this is done on an offline computer! An encrypted USB stick like the Kingston Digital DataTraveler 4000 sells for $28 on Amazon. Transcript - How To Store Bitcoin On USB Stick Hello and welcome to my video where I’m going to show you how to create a simple and secure USB Bitcoin wallet. We’re going to create this USB Bitcoin ...

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TUTORIAL How to Store Bicoins Offline (step by step) - YouTube

SUBSCRIBE FOR MORE HOW MUCH - http://shorturl.at/arBHL GekkoScience NewPac USB Miner - https://bit.ly/2RIQgdX GekkoScience 8 Port USB Hub - https://bit.ly/2x... If necessary, we can send the funds from the USB stick to another wallet, either Online, Cloud, or Offline cold storage. Thanks for watching! Bitcoin For Beginners on Facebook! HOW TO SAFELY STORE YOUR #BITCOIN OFFLINE WITH #CRYPTO WENDY O #STORAGE-----// DISCLAIMER: I AM NOT A FINANCIAL ADVISOR and THIS IS NOT INVESTMENT ADVICE. I am merely educating and entertaining ... Hope you liked my Tutorial!!!! Donate with Bitcoin: 1EfE3d6hYdiURcLcwTqtUte4f3TkTymJYt BITCOIN DIVERSIFICATION: http://www.youtube.com/watch?v=oeYIFcKGwd0 The Crypto Dad shows you how to set up a cold storage wallet using the Electrum Bitcoin wallet. We go through creating an “air-gapped” computer with no conne...

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