BySara Dorn,

Forbes Staff.

Defense Secretary Pete Hegseth violated Pentagon policy that prohibits use of a personal device for official business when he used a Signal chat to discuss military strike plans and failed to properly retain the messages as required by federal law, the Pentagon inspector general found in a report Thursday.

Hegseth’s “actions created a risk to operation security that could have resulted in failed U.S. mission objectives and potential harm to U.S. pilots,” the IG wrote.

The information Hegseth sent via Signal, detailing plans for attacking Houthi rebels in Yemen in March, came from a classified email from the Commander of the U.S. Central Command, the report says.