As sources on Thursday confirmed Mike Waltz’s exit from his post as national security adviser, the impact of the U.S.

Here’s what to know about the reports of another group chat in which the Defense Secretary shared sensitive information.

In the messages leaked in March by Atlantic magazine editor Jeffrey Goldberg, who was inadvertently included in the chat group, Vance expressed to his colleagues that he thought the administration ...

Donald Trump will be interviewed by The Atlantic's Jeffrey Goldberg, amidst controversy over Goldberg's accidental inclusion in a sensitive national security chat. Trump, questioning The Atlantic ...

Hegseth, for the second day in a row, blamed “leakers” in the Pentagon for a new report he shared sensitive military information in a second Signal group chat that included his wife and brother.

White House hit back at news reports detailing Secretary Pete Hegseth's reported involvement in a second Signal group chat, ...

In the wake of the report in The Atlantic disclosing the first Signal chat, Mr. Hegseth and other ... would be classified information that, if leaked to the enemy, could have jeopardized pilots ...

Records show defense contractors lost security clearances when they had no intention to leak information or were using unauthorized technology for convenience.

From accidental leaks to unsecured networks, the encrypted messaging app has turned into a political landmine—exposing the vulnerabilities of America's top officials.

From leaks of sensitive operational ... The first Signal controversy centred on The Atlantic’s editor-in-chief accidentally joining a secure chat in which details of a pending bombing mission ...

Defense Secretary Pete Hegseth hit back at critics Monday over new reports that he shared secret U.S. military attack plans with his wife, brother and lawyer in real time on the Signal app.

More than 80% of Iraq and Afghanistan Veterans of America veterans surveyed said they are concerned recent federal cuts could ...