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 ...

The communications app TeleMessage, which was spotted on former US national security adviser Mike Waltz's phone, has ...

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

President Trump recently discouraged the use of the Signal app after controversy over a group chat of administration ...

The Trump administration fired NSC advisor Mike Waltz and other staffers with the national security counci, Fox News Digital ...

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

A phone app that Mike Waltz, President Donald Trump’s former national security adviser, apparently used to save his text ...

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

Mike Waltz is expected to be ousted from his role as Donald Trump's national security adviser amid the fallout over ‘The ...

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

Waltz was among high-ranking members of the administration who accidentally shared plans about a forthcoming U.S. military ...