A messaging app called Signal based in San Francisco was used by the Trump administration to discuss war plans.

High-level Trump officials used the digital messaging app Signal to communicate sensitive details about an impending military ...

Defense Secretary Pete Hegseth and Signal are back in the news. The New York Times reported Sunday that Hegseth created a Signal messaging chat that included his wife and brother. The details of the ...

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.