Here's what to know about the messaging app used by Trump Administration officials to discuss military strikes on Yemen.

Signal offers end-to-end encryption, disappearing messages, and local backups to protect user data ...

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 information is ...

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 ...

Defense Secretary Pete Hegseth put U.S. troops at risk by sharing sensitive plans about an upcoming military strike in Yemen on his personal phone, according to a Pentagon inspector general’s report ...

Dutch intelligence warns that attackers are hijacking Signal and WhatsApp accounts by tricking users into sharing verification codes or linking a malicious device.

WASHINGTON (AP) — 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 ...