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Ultimate guide to mobile security for iPhone and Android devices
While most of us know to be vigilant when it comes to the security of our desktops and laptops—installing antivirus programs and regularly scheduling system scans—our mobile phones often aren’t ...
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Ultimate guide to mobile security for iPhone and Android devices
While most of us know to be vigilant when it comes to the security of our desktops and laptops—installing antivirus programs and regularly scheduling system scans—our mobile phones often aren’t ...
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How to set up a home server and use it as a Bitcoin node
If you are using Bitcoin and care about your privacy and security, you will need to run a node. The Bitcoin node verifies that the payments you receive are fully confirmed, and that funds in your wall...
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The safe browsing guide: 21 ways to protect yourself online
Browsers are slowly replacing operating systems as the central interface for devices. Already, they are the primary application on most computers. Similar to how our smartphones have become our camera...
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What is off-the-record messaging (OTR)?
For journalists, the ability to protect a source is vital to successfully communicating with valuable people. For sources, the stakes are even higher: their security and liberty depend on not being id...
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Tech safety for survivors of domestic violence
Content warning: This guide discusses aspects of domestic violence and abuse. Domestic violence is about the abuse of power and control, which can take many forms. Often, technology can serve as a maj...
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The essential crypto glossary: Blockchain terminology explained
Bitcoin is big news, but many of us don't understand it. This crypto glossary explains the blockchain terminology you need to hold your own. 21 Symbolic number, as there can only ever be 21 million Bi...
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How to set up and use Pretty Good Privacy (PGP)
Pretty Good Privacy (PGP) is the No. 1 trusted and tested encryption program. It can be used to encrypt text, files, emails, or entire disks. It was created in 1991 by Phil Zimmermann and was released...
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We’re at the dawn of medical surveillance
The past year has been dominated by the consequences of a new coronavirus that has spread rapidly to every corner of the globe. New legislation and emergency regulations have allowed nearly every coun...
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All in your head: Creating a Bitcoin ‘brainwallet’ with Diceware
One way to store Bitcoin is in your head. You do this by remembering a list of words—a method called brainwallet. The words need to be random and secure, which can be achieved using Diceware. In suc...
