Secretary of War Pete Hegseth "acted within his authority" by sharing sensitive details about Houthi strikes over Signal, Armed Services Chairman Roger Wicker said after viewing a report from the ...

President Donald Trump's former national security adviser Mike Waltz was photographed using Signal during a Cabinet meeting on Wednesday, just one day before the president announced he was replacing ...

Mike Waltz, the departing national security adviser at the center of "Signalgate," is seen in new photos using the commercial messaging application during a Cabinet meeting held by President Donald ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...

The probe, announced via podcast, has been widely criticized.

A dozen current and former officials confirmed that the encrypted messaging app is used across various agencies — despite warnings about its security vulnerabilities.

Last month, after news broke that Secretary of Defense Pete Hegseth was using Signal to discuss sensitive military operations in violation of Pentagon policy, one of his closest military aides made an ...

Defense Secretary Pete Hegseth violated Pentagon policy that prohibits use of a personal device for official business when he used a Signal chat to discuss military strike plans and failed to properly ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...