The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here's what to know about Signal, including who owns it and whether it's safe to use. The messaging app ...

Make the most of this encrypted messaging app.

Signal has been the most high-profile app in the news lately because of the controversy surrounding its use by Defense Secretary Pete Hegseth. Signal is a secure messaging platform known for ...

The Signal Desktop app now has a new security feature to prevent Microsoft Recall from taking screenshots of chats. This feature utilizes a flag similar to Android's "FLAG_SECURE" to protect user ...

Russia is “engaged in a large-scale global attempt” to take over Signal and WhatsApp accounts, two Dutch intelligence agencies said Monday.

As national security services warn that Russian hackers are currently engaged in new global attacks against WhatsApp and ...

Defense Secretary Pete Hegseth and Signal are back in the news. The New York Times reported Sunday that Hegseth created a Signal messaging chat that included his wife and brother. The details of the ...

Defense Secretary Pete Hegseth used the Signal app on a personal computer in his office that was connected to the internet on an unsecured commercial line, what's known as a "dirty line," two sources ...

A photo taken by Reuters' Evelyn Hockstein during a Cabinet meeting Wednesday shows Waltz holding his phone below the table, with the encrypted-texting app open and visible. It also shows Waltz in ...

Mike Waltz appears to be communicating with other Trump officials via a version of Signal a day before he was removed as White House national security advisor. A photo from a Cabinet meeting Wednesday ...

Former White House national security advisor Mike Waltz and other Trump officials appear to be communicating on a modified version of Signal, despite President Donald Trump discouraging use of the ...