In a continuation of Signalgate, Hegsgeth came under scrutiny again last month, when the Washington Post reported that he not ...

National security officials are using commercial apps over secure communications systems that feel burdensome. New apps offer ...

Researchers uncover security weaknesses in obscure TM SGNL app and indications that its Israeli maker was itself recently ...

The clone, TeleMessage, was the subject of a reported hack in which the contents of some direct messages and group chats were ...

The security of U.S. government officials’ communications has come under the spotlight again after a modified Signal app used to archive data from third-party messaging apps was hacked in less ...

Sen. Ron Wyden (D-Ore.) is calling on the Department of Justice to investigate the risks associated with Trump administration ...

TeleMessage, an instant communications app used by some US Government ... former US National Security Advisor, was using an unofficial version of Signal called "TM SGNL," created by TeleMessage.

Newly ousted national security adviser Michael Waltz, who came under scrutiny for his usage of the messaging app Signal to discuss sensitive military operations, was photographed at a Cabinet ...

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

Mike Waltz is expected to be removed from his position as US National Security Advisor after a security breach involving the Signal app. Waltz mistakenly included a journalist in a group chat ...

Beyond concerns about security, Signal and other similar apps may allow users to skirt open records laws. Without special archiving software, the messages frequently aren't returned under public ...