In a statement, the department said the app serves as a supplemental communication tool, similar to phone calls, text ...

FBI and CISA warn Russian spies targeted Signal users in a phishing campaign that compromised thousands of messaging app ...

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

WASHINGTON — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information about ...