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 popular messaging app called Signal was recently the preferred communications platform for top officials in the Trump administration to discuss secret war plans. But the use of the app, widely ...

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.

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its robust ...