A new analysis of TM Signal’s source code appears to show that the app sends users’ message logs in plaintext. At least one ...

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

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

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national ...

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what ...

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 ...

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

Researchers uncover security weaknesses in obscure TM SGNL app and indications that its Israeli maker was itself recently ...