U.S. National Security Advisor Mike Waltz, who started the now-infamous group chat coordinating a U.S. attack against the ...

Lawmakers and legal experts claim the Yemen Signal group chat ‘blatantly violated security regulations designed to prevent exactly this kind of leak’ ...

The Trump administration’s Signal chat leak represents the "profound" risk of "uncontrolled communication," which could have implications on future operations, a former national intelligence ...

We are ending our live coverage of Signal group chat leak for now. You can stay up to date on the latest developments in this ...

Excerpts of a Signal chat published Monday by The ... Below is a reproduction of the chat, with annotated analysis from our reporters. Team – establishing a principles group for coordination ...

Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. By now you know that several members of ...

Jeffrey Goldberg, the Atlantic's top editor who was included in a Signal chat of Trump administration officials discussing plans for a military strike, pushed back Sunday on National Security ...

The White House considers the Signal group chat leak case "closed," Trump administration press secretary Karoline Leavitt told the media Monday while reiterating President Donald Trump's support ...

Donald Trump has accused the media of waging a "witch hunt' in its calls for answers over the Signal group chat leak. The president ... agree with my bogus analysis of the law or face impeachment.

Signal's president Meredith Whittaker reaffirmed the security of the messaging app after a chatroom leak involving US officials. The incident, caused ...