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

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

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

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

Mike Waltz appears to be communicating with other Trump officials via a version of Signal a day before he was removed as ...

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

The Signal group chat was made public after reporter Jeffrey Goldberg was mistakenly added to the conversation. In a March 24 article published in The Atlantic, Goldberg wrote it was Waltz who ...

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

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

An Israeli app used by then-U.S. National Security Adviser Mike Waltz to archive chats on Signal was easily hacked and his ...

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

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