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

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

The Democratic senator will not vote to confirm the ex-national security adviser, who she says is "failing up" after putting ...

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

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

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

Mike Waltz faces scrutiny after a photo revealed his use of TM SGNL, a modified Signal app, raising security concerns due to ...

The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...

Waltz’s problem was that in an administration of know-nothing America firsters, solicitous Trump sycophants, and national ...

The images, captured by Reuters, show Mike Waltz, the former national security adviser, using the TM SGNL app, which allows ...