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 ...

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.

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 ...

Senior Trump administration officials continued using Signal, a private messaging app, after last year’s embarrassing leak when a reporter was added to a group chat discussing sensitive military ...

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 ...