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

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.

The latest controversy comes as both Waltz and current Defense Secretary Pete Hegseth have made headlines for multiple Signal ...

Mike Waltz was fired as national security advisor after being caught using the encrypted messaging app Signal during a ...

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco ...

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

Mike Waltz has been nominated as the US ambassador to the UN, while Marco Rubio will take over as interim National Security ...

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

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

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco ...