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

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

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

White House national security adviser Mike Waltz is set to depart the administration just weeks after it was revealed he ...

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

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.

An unofficial version of Signal, TeleMessage, used by Mike Waltz, Donald Trump's former National Security Adviser, has ...

Donald Trump has tapped secretary of state Marco Rubio to be interim national security adviser after firing Mike Waltz and ...

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

US president Donald Trump said ­yesterday he is nominating his national security adviser Mike Waltz to serve as United ...

Adviser Mike Waltz had been under intense scrutiny after he reportedly mistakenly added the magazine’s editor-in-chief to a ...