President Donald Trump defended National Security Advisor Michael Waltz during an ambassador meeting on Monday, as his administration faces fierce backlash over the recent Signal text chain leak.

Signal phishing attack targets journalists, activists, and dissidents with fake support texts that steal backup recovery keys ...

The Atlantic magazine on Wednesday published text messages from top Trump administration officials laying out minute-by-minute operational details and exact weapons to be used in strikes against the ...

Joanne Stocker is a verification producer for CBS News Confirmed. She was previously chief editor of Kurdistan 24 English and managing editor at The Defense Post. She has combined open-source ...

President Donald Trump is not planning to fire national security advisor Mike Waltz in the wake of The Atlantic's reporting of an apparent national security breach, Fox News has learned. "He’s not ...

The president of Signal defended the messaging app’s security on Wednesday after top Trump administration officials mistakenly included a journalist in an encrypted chatroom they used to discuss a ...

LONDON — 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 ...

The Atlantic has published the text messages from a group chat on Signal, a messaging app, in which top U.S. defense and intelligence officials shared planned military airstrikes on Yemen targeting ...

With news this week of the messaging app being used to discuss war plans, we get you up to speed on what Signal should be used for—and what it shouldn’t. MIT Technology Review Explains: Let our ...