The Pentagon’s internal watchdog notified the defense secretary of a probe into whether he shared classified information last ...

The evaluation will look into whether Defense Secretary Pete Hegseth complied with department policies when using a Signal ...

The handling of private military discussions among top officials has triggered US security concerns, including from GOP ...

The use of the Signal messaging app by top Trump officials came to light after The Atlantic's editor was added to a group ...

The administration has downplayed the importance of the text messages inadvertently sent to The Atlantic’s editor in chief.

As senior officials deny wrongdoing, rank-and-file national-security personnel worry about the dangers if no one is held ...

The president’s officials must know that what they did in the Signal group chat was wrong—and dangerous.

U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could ...

In The Atlantic’s initial story about the Signal chat—the ... Had multiple positive ID. Pete, Kurilla, the IC, amazing job.” Waltz was referring here to Hegseth; General Michael E.

The Signal security breach would be bad enough if those involved had not spent so much time criticizing Hillary Clinton for ...

The Atlantic published Signal texts from Pete Hegseth sharing details of the Yemen attack after Trump and others denied it ...