If US officials feel comfortable sharing classified operations on apps like Signal, one must question what other security ...

A big row has erupted over the Yemen war plan details revealed on a Signal group chat, which inadvertently involved The ...

A few G.O.P. lawmakers said they would look into the breach, but party leaders largely tempered their criticism of the Trump ...

Defense Secretary Pete Hegseth on Tuesday fended off a reporter’s questions about a leaked Signal chat group about ...

The Pentagon's Inspector General's office announced on Thursday it was opening a probe into Defense Secretary Pete Hegseth's ...

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

The security vulnerabilities of using Signal to discuss military operations The news of Trump ... to preserve Signal chat about strikes in Yemen A federal judge on Thursday said he will order ...

The Atlantic’s editor said Pete Hegseth sent operational details of a US attack on the Houthis in a Signal chat.

Did Defense Secretary Pete Hegseth’s messages detailing planned U.S. airstrikes in Yemen constitute a classified war plan?

The Pentagon’s acting inspector general announced Thursday that he would review Defense Secretary Pete Hegseth’s use of the ...

“Their behavior blatantly violated security regulations designed to prevent exactly this kind of leak ... in gallery The Signal app is not authorized for discussing military operations.

On Monday it was revealed that top Trump administration officials were using a commercial messaging app to plan military ...