The app, which was introduced in 2014 and has hundreds of millions of users, is widely viewed as the safest messaging tool ...

Top Trump administration officials accidentally shared highly sensitive attack plans on Iranian-backed militants in Yemen with a journalist on the messaging app Signal. Signal is a free ...

The president of Signal defended the security of the encrypted messaging app on Tuesday after a bombshell report revealed top ...

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its ...