Hegseth’s usage of Signal has become a growing crisis for the Pentagon after revelations that the defense secretary last ...

The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here’s what to know about Signal ...

Signal has estimated 40-70 million monthly users - making it pretty tiny compared to the biggest messaging services, WhatsApp ...

The app facilitated communications in a building where cell service is poor and personal phones are not allowed in some areas ...

Reuters this week reported that U.S. Defense Secretary shared classified information with wife, brother, lawyer. How does the ...

In a deposition, the chief of staff said she used the app to receive documents on which companies to consider blacklisting ...

Trump defended Defense Secretary Pete Hegseth, following reports of another Signal chat that included his wife and brother.

Signal is a messaging app that uses end-to-end encryption to keep your messages private — not even the company that makes the ...

Defense Secretary Pete Hegseth had the Signal messaging app installed on his desktop computer in the Pentagon to circumvent ...

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

Information about U.S. strikes in Yemen that the defense secretary put in two group chats came from Central Command, ...

The move was intended to circumvent a lack of cellphone service in much of the Pentagon and enable easier communication ...