Martin Shelton is a user researcher working with at-risk groups and the press on digital security hygiene.
Martin’s work on Source
Articles by Martin
Shields Up: Using Signal Without Giving Your Phone Number
Step-by-step directions for using Google Voice or Twilio to keep your digits privatePosted on
Encrypted messaging apps like Signal, as well as WhatsApp and Viber, use your phone number as your main username. This means that if I want to chat with someone on these apps, I have to give them my phone number. But we may have many reasons—both practical and principled—not to share our number with someone. These digits are personal.
Shields Up: Get Your Malware Shots
How reporters can prepare for malicious softwarePosted on
Malware lets an unauthorized third party access or take control of your device. In practice, it’s become a catch-all term for a huge variety of malicious software. That could include software that hijacks computing resources, lets an attacker monitor your screen, keystrokes,microphone, or effectively turns your device into an expensive brick.
How to Lose Friends and Anger Journalists with PGP
Newsrooms have better optionsPosted on
All the reasons that journalists should look beyond PGP for sending encrypted messages.
Two-Factor Authentication for Newsrooms
The easiest ways to make it harder for attackers to access your accountsPosted on
Passwords are the brittle wall that keep unwanted visitors out of your accounts. Breaches can hit anyone, but as frequent targets with sensitive sources, work, and personal information at risk, reporters should take extra care. When it comes to account protection, two-factor authentication is one of the most effective defenses available.
Shields Up: Developing Security Skepticism
How to become the right kind of cautious, when it comes to security newsPosted on
A little fear can motivate us to take action. But as consumers of security news, even the most well-intentioned reporting can scare us into paralysis—or worse, encourage us to adopt behaviors that promote a false sense of security.
Shields Up: You Are Worthy of a Data Breach
No more modesty—your data is an attractive target, no matter how boring you think you arePosted on
You know what’s the biggest security threat to journalists? Modesty.
Opening Secure Channels for Confidential Tips
Our new security columnist breaks down the landscape for securing communications with sensitive sourcesPosted on
To make it easier for tipsters to share sensitive information, a growing number of news organizations are launching resources for confidential tips. This short guide will describe some basics around how to think about security on behalf of your sources before thinking about tools and practices.
Digital Self-Defense for Journalists: An Introduction
How to protect yourself and your newsroom without losing your mindPosted on
Digital self-defense is becoming an important part of the journalistic toolkit. Beyond risks to everyone’s digital lives—webcam hacking, email breaches, identity theft—people who work in newsrooms have even more at stake. Newsrooms are some of the biggest targets in the world for state-sponsored digital attacks, as well as more routine threats. Here’s how to build stronger roadblocks, making it harder for others to access our data without consent.