Joe Kasper, chief of staff under Defense Secretary Pete Hegseth, is departing his role but will remain as a Special ...

Defense Secretary Pete Hegseth used the Signal app on a personal computer in his office that was connected to the internet on ...

Joe Kasper leaves the role voluntarily, but his departure adds to the sense of instability that has gripped the Defense Department for weeks.

Following a slew of negative headlines, Hegseth oversaw a purge of his handpicked top aides—including Dan Caldwell, Colin ...

Defense Secretary Pete Hegseth allegedly had a "dirty" internet connection that bypassed the Pentagon’s security protocols ...

Secretary of Defense Pete Hegseth has faced allegations of sharing classified information on Signal, a commercially available ...

A "rattled" Defense Secretary Pete Hegseth shouted at a now-former aide in a profane attack inside the Pentagon as he hunted ...

The departure of the Defense secretary’s top advisers has left the first-time government official without senior staff who ...

WASHINGTON—Defense Secretary Pete Hegseth was rattled. Word had leaked that he was planning a classified briefing for Elon ...

Kasper is the fifth Defense official to leave the agency in the past week amid investigations of internal leaks within the ...

Two people familiar with the case have told AP that Defense Secretary Pete Hegseth had an internet connection that bypassed ...