A magazine journalist's account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive information is ...

Add Yahoo as a preferred source to see more of our stories on Google. Signal is considered one of the most secure messengers. However, the app could disappear from the European market if an EU ...

Last Wednesday, former national security advisor Mike Waltz was photographed at a cabinet meeting using TeleMessage, a modified version of Signal, the encrypted messaging app that has been the source ...

Defense Secretary Pete Hegseth’s improper use of the Signal group chat to discuss sensitive military plans earlier this year could have endangered troops, the Pentagon inspector general determined, ...

Defense Secretary Pete Hegseth is facing growing scrutiny over his use of the commercial messaging app Signal to discuss U.S. military operations, including operational details about strikes in Yemen.

WASHINGTON — Defense Secretary Pete Hegseth on Tuesday defended his sharing of sensitive military details for a second time using the Signal messaging app while faulting Pentagon officials who were ...