The inquiry will examine whether the Pentagon chief violated the agency’s standards for sharing classified information.

Hegseth and other top administration officials have said that no classified information was shared in a Signal messaging app ...

In the wake of an explosive report that senior Trump administration officials discussed planned military strikes in a Signal ...

The Defense Department Inspector General's Office has opened an investigation into Defense Secretary Pete Hegseth's use of ...

The lack of public contrition, let alone resignations, from top officials, reflects a White House that operates in a culture of impunity and has stacked the Justice Department and FBI – which might ...

Senior Trump administration officials have been accused of using the third-party app to discuss highly sensitive national security information.

Former national security officials reacted with shock and horror to revelations in The Atlantic that top members of President ...

The Senate Armed Services Committee is calling for an independent investigation ... U.S. airstrikes against Iran-backed Houthi rebels in Yemen hours before they happened, because he was added to a ...

The Defense Department inspector general has opened an investigation into Defense Secretary Pete Hegseth’s reported use of Signal to discuss U.S. attack plans against the Houthis.

The Pentagon warned against using Signal in a memo just last week, according to NPR. It cited threats from Russian hackers.

US officials' use of an unsecured chat app presented potential problems even before a journalist was added to the group, ...