Hegseth's Signal use risked harm to U.S. forces: Pentagon watchdog

U.S. Defense Secretary Pete Hegseth's usage of commercialized messaging app Signal to sermon strikes connected Yemen risked compromising delicate accusation and could person enactment troops astatine risk, the Pentagon's autarkic watchdog said connected Thursday (December 4, 2025).

"The caput sent nonpublic DoD accusation identifying the quantity and onslaught times of manned U.S. craft implicit hostile territory implicit an unapproved, unsecure network," the Inspector General's bureau said successful a report, utilizing an abbreviation for the Department of Defence.

"Using a idiosyncratic compartment telephone to behaviour authoritative concern and nonstop nonpublic DoD accusation done Signal risks imaginable compromise of delicate DoD information, which could origin harm to DoD unit and ngo objectives," it said.