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

A third top Pentagon official was placed on administrative leave Wednesday in the fallout of a major leak of sensitive U.S.

As the White House comes under fire for allegedly using Signal to discuss foreign policy plans, the encrypted messaging platform has now come into the spotlight.

The Pentagon warned against using Signal in a memo just last week, according to NPR. It cited threats from Russian hackers.

Darin Selnick, US deputy chief of staff, faces suspension amid a probe into Pentagon leaks linked to a Signal group chat.

The Pentagon’s inspector general will conduct an investigation of the Signal group chat where Defense Secretary Pete Hegseth and other Trump administration officials discussed details of an impending ...

The Pentagon's inspector general launched a probe into the Trump administration's use of Signal to discuss a planned strike ...

The Pentagon inspector general's office said it would evaluate Hegseth's use of Signal to discuss strikes against the Houthis ...

The Pentagon’s acting inspector general has announced that he will review Defense Secretary Pete Hegseth’s use of the Signal ...

A screengrab of a page from a Pentagon-wide memo warning against using the messaging app Signal. Several days after top national security officials accidentally included a reporter in a Signal ...

Several days after top national security officials accidentally included a reporter in a Signal chat about bombing Houthi sites in Yemen, a Pentagon-wide advisory warned against using the ...