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

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

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

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

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

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

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

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

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.

The president says Waltz, who started the leaked Signal chat, will be nominated as US ambassador to the UN and be temporarily replaced by Secretary of State Marco Rubio.

Mike Waltz, the departing national security adviser ... involving him and other prominent government officials using Signal to converse about highly sensitive details regarding a planned U.S ...