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

Newsweek has reproduced all the Signal group messages that were published by The Atlantic, either by being written out by ...

Clinton reacted to the news of the Trump administration's use of Signal, writing on X, "You have got to be kidding me." ...

Defense Secretary Pete Hegseth on Tuesday fended off a reporter’s questions about a leaked Signal chat group about forthcoming strikes on the Houthis in Yemen.

Military and intelligence experts and some members of Congress have expressed shock over the inadvertent leak, raising questions ... Houthi rebels in Yemen hours before they happened, because he was ...

US Defence Secretary Pete Hegseth is facing a fresh legal trouble after Pentagon school students have filed a lawsuit against ...

A watchdog group has said the exchanges on the Signal app were federal records, and sued in an effort to preserve them.

A Pentagon-wide advisory that went out one week ago warned against using Signal, the messaging app, even for unclassified ...

President Donald Trump revealed a staffer with national security advisor Mike Waltz's office added the editor in chief of the Atlantic to a Signal group chat.

US President Donald Trump and his intelligence chiefs have played down a security breach that saw a journalist invited into a ...

KNOWN: Signal is a publicly available ... specifics of a military attack to a chat group that included a journalist hours before the attack took place in Yemen has raised many questions.