You can invite someone to Signal using the "Invite Friends" menu in the app, which will send a text message or email.

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 ...

Signal, an encrypted messaging app hailed for its robust privacy features, recently found itself at the center of a security scandal involving high-ranking U.S. officials. The issue started when ...

The Signal encrypted messaging application is seen on a mobile device in this illustration photo taken in Warsaw, Poland on 26 March, 2025. (Photo by Jaap Arriens/NurPhoto) I don’t know very much ...

Some strategies on how to best use Signal to keep your messaging secure. Some strategies on how to best use Signal to keep your messaging secure. is a senior science reporter covering energy and the ...