Highly sensitive attack plans on Iranian-backed militants in Yemen were seemingly accidentally shared with a journalist as they were happening when top Trump administration officials included Jeffrey ...

We have probably all done it: Gossiped about a friend in an email, only to discover we accidentally included the friend in the correspondence. Or dashed off a sensitive text to Gene, our friend, and ...

When top White House defense and national security leaders discussed plans for an attack on targets in Yemen over the messaging app Signal, it raised many questions about operational security and ...

The Trump administration is facing heavy blowback for using Signal, a messaging app, to discuss sensitive military plans. On March 24, officials’ usage of the app was revealed after The Atlantic ...

The federal office in charge of ensuring cybersecurity at all levels of the government cited the use of encrypted messaging app Signal as a "best practice" for "highly targeted" government officials, ...

The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for American forces.

America First Legal, a conservative legal group closely tied to the Trump administration, said Monday it was "no coincidence" that a CBS News Colorado investigation found Denver Mayor Mike Johnston ...