Add Yahoo as a preferred source to see more of our stories on Google. Signal, the most secure widely available messaging app, has become a go-to resource for journalists, leakers and other people ...

So, about that Signal chat. On Monday, shortly after we published a story about a massive Trump-administration security breach, a reporter asked the secretary of defense, Pete Hegseth, why he had ...

WASHINGTON — President Donald Trump on Tuesday downplayed the texting of sensitive plans for a military strike against Yemen’s Houthis this month to a group chat that included a journalist, saying it ...

A federal judge in Washington, D.C. ordered relevant agencies Thursday to preserve all communications between March 11 and March 15 in a Signal group chat containing discussions of sensitive military ...

Signal, the most secure widely available messaging app, has become a go-to resource for journalists, leakers and other people concerned about privacy. But it’s not infallible. And its shortcomings and ...

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 ...