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

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

The app Waltz was using appeared to be “TM SGNL,” a modified version of Signal that retains and archives messages to comply ...

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

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

Mike Waltz, President Trump's national security advisor, is leaving the White House weeks after he accidentally added a ...

Days after former National Security Adviser Mike Waltz was caught using a knock-off Signal app, a hacker broke into the ...

The Trump administration is overhauling the National Security Council after it announced former National Security Advisor Mike Waltz would depart his post overseeing the agency.

President Donald Trump announced that Mike Waltz had been ousted as national security advisor. He was previously caught up in "Signalgate." ...

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

TeleMessage lets users archive their chats in secure messaging apps. However, the hacker reportedly found that TeleMessage’s ...