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

Congressional Republicans are grappling with how to respond to senior Trump administration officials’ use of a Signal group ...

Dan Caldwell, a top adviser to Defense Secretary Pete Hegseth, and Darin Selnick, Hegseth’s deputy chief of staff, have both ...

Jeffrey Goldberg, the Atlantic's top editor who was included in a Signal chat of Trump administration officials discussing plans for a military strike, pushed back Sunday on National Security ...

Mistake.” “Glitch.” “Entirely permissible.” “Hoax.” See the varied and shifting responses President Donald Trump and his ...

Signal's encryption protocol is open source, meaning that it's freely available for anyone to inspect, use or modify. The encryption protocol is also used by another popular chat service ...

Sources tell CBS News the Signal chat involving senior Trump administration officials included sensitive intelligence Israel ...

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.

U.S. Defense Secretary Pete Hegseth again on Tuesday dodged questions about whether the information he put in a Signal group ...

Striking the Iranian-backed Houthi militia serves U.S. interests and puts pressure on Iran over its nuclear ambitions.

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

The Pentagon’s inspector general will conduct an investigation of the Signal group chat where Defense Secretary Pete Hegseth ...