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

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

US NATIONAL SECURITY advisor Mike Waltz is set to leave his position at the White House., according to US media reports.

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

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

Trump Removes Mike Waltz as NSC Adviser After War Plan Leak on Signal | Firstpost America | N18G In a major political shakeup, US President Donald Trump has removed Mike Waltz from his position as the ...

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

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

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

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

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