In one case, he told aides on the encrypted app to inform foreign governments about an unfolding military operation, people familiar with his management practices said.

Secretary of Defense Pete Hegseth has faced allegations of sharing classified information on Signal, a commercially available messaging app, at least twice.

The Pentagon inspector general has reportedly expanded an investigation into Defense Secretary Pete Hegseth’s use of the encrypted messaging app Signal. Citing a congressional aide and a source familiar with the inquiry,