Mike Waltz, Trump’s former national security adviser who was removed from his post in May following the “Signalgate” scandal, blamed the Biden administration while explaining his use of Signal, the ...

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 ...

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 ...

Newly ousted national security adviser Michael Waltz, who came under scrutiny for his usage of the messaging app Signal to discuss sensitive military operations, was photographed at a Cabinet meeting ...

The security of U.S. government officials’ communications has come under the spotlight again after a modified Signal app used to archive data from third-party messaging apps was hacked in less than 30 ...