The clone, TeleMessage, was the subject of a reported hack in which the contents of some direct messages and group chats were ...

Message contents and government official contact information were obtained during the breach, 404 Media reports.

Mike Waltz, the national security adviser for President Donald Trump, is seen in photos using Signal during a Cabinet meeting ...

There are some hurdles former National Security Advisor Mike Waltz must clear first before the United Nations ambassador job ...

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials.

The app Waltz was using appeared to be “TM SGNL,” a modified version of Signal that retains and archives messages to comply ...

Mike Waltz's exit from the Trump administration comes on the heels of the Signal chat scandal. Here's what happened.

The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet ...

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

President Donald Trump announced that Mike Waltz had been ousted as national security advisor. He was previously caught up in ...

President Donald Trump's outgoing national security adviser Mike Waltz was photographed using Signal on his phone during ...