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

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials. "I don't even know where to start with this," says one expert.

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

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

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

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 ...

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

President Donald Trump has removed Mike Waltz as national security adviser and instead will nominate him for United Nations ...

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.

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

The unofficial version of Signal used by Donald Trump's former National Security Adviser Mike Waltz has been hacked, tech site 404 Media said Sunday, raising further concern over the security of the ...