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

A guide from the national intelligence director’s office says “information providing indication or warning that the U.S. or ...

President Donald Trump told reporters on Wednesday he’s “not sure” whether his top officials shared classified details of an ...

The first way someone with the proper clearance can communicate about classified information is in person. They can talk about secret things in what is called a sensitive compartm ...

Former U.S. defense officials said the unsecured messaging chain could have jeopardized the operation and put American lives ...

Reporters challenged White House press secretary Karoline Leavitt on how the attack plans which inadvertently leaked in a ...

Fox News’s Chief National Security Correspondent Jennifer Griffin said she surveyed current and former defense officials on ...

The top Republican and Democrat on the Senate Armed Services Committee are requesting an investigation into how Trump ...

The Atlantic released unredacted messages about strikes in Yemen that the White House claims aren’t “war plans.” NBC News’ ...