The White House is clapping back against media reports claiming intel officials have been using the end-to-end encrypted ...

Top Trump officials are facing a firestorm after using the commercially available app Signal to discuss a U.S. military ...

The inadvertent inclusion of a journalist on a Signal group chat discussing attack plans means officials likely violated the ...

The Pentagon’s internal watchdog notified the defense secretary of a probe into whether he shared classified information last ...

A Senate hearing Tuesday highlighted the apparent internal uncertainty -- if not an attempt to focus blame on one figure.

The often bureaucratic nature of classified information is complicated, with different levels of secrecy and different ...

After it came to light this week that National Security Adviser Mike Waltz had added Jeffery Goldberg, the editor in chief of ...

Signal’s convenience and the lack of clear agency guidelines makes the commercial app a popular choice for government ...

Trump administration officials are struggling to stem the fallout from revelations that top national security officials ...

The Trump administration's use of a popular app to discuss sensitive military plans is raising questions about security and ...

CIA Director John Ratcliffe said the Signal texts revealing the so-called "attack plans" targeting Yemen’s Houthi rebels ...

F-18 Super Hornet launch times and other details concerning strikes on the Houthis in the leaked Signal chat were classified.