Here's what to know about the messaging app used by Trump Administration officials to discuss military strikes on Yemen.

What is Signal, the chat app used by US officials to share attack plans? Signal uses end-to-end encryption for its messaging and calling services that prevents any third-party from viewing ...

Top Trump administration officials used the messaging app Signal to debate highly sensitive plans for bombing Yemen and accidentally included the editor-in-chief of The Atlantic in a group text in ...

President Trump recently discouraged the use of the Signal app after controversy over a group chat of administration officials detailed military plans.

Amid the fallout regarding a Signal chat among senior national security officials, tech expert Ken Colburn of Data Doctors talks about the app’s security.

The president of Signal defended the security of the encrypted messaging app on Tuesday after a bombshell report revealed top Trump administration officials used the app to discuss airstrike plans ...

TeleMessage, an instant communications app used by some US Government officials, has reportedly been hacked, with private messages stolen. A report from 404 Media says a hacker broke into, and ...

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.