Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s not clear whether the team at Signal believes the maxim that ...

You change your profile picture on Signal, the open-source messaging app, anytime from the app's Settings menu.

You can block someone from contacting you on Signal, and unblock users you've blocked, just like you can on most messaging ...

Serious national security concerns have been brought to the forefront this week — and they’re linked to a secure messaging app called Signal. White House staffers have come under fire after allegedly ...

Messaging is still one of the best ways to communicate with your friends and family. To send an SMS, all you need is a SIM card with an active messaging plan installed on your smartphone. But what if ...