Security lessons from a Signal group chat

Most sources don’t reach out with terribly sensitive information. But sometimes they do.
Also available in Spanish.
Learn who else could be on the line when making a call on your cell.
The app's easy-to-use "disappearing messages" feature can prevent sensitive conversations from getting into the wrong hands — when used as a part of a larger practice of secure communications.
Many fear how the Trump admin will use surveillance to stifle dissent. Here's a beginner's guide to upping your privacy and security game.
For journalists covering political movements, reporting on protests is crucial, but these events come with unique security challenges. Here's how you can better protect your privacy and security.