While the public typically calls any information withheld by the government “classified,” that term only refers to the three ...

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

Fmr FBI agent who'd claimed pro-Trump bias at bureau arrested for allegedly sharing classified information to publish a book.

The often bureaucratic nature of classified information is complicated, with different levels of secrecy and different potential punishments for its disclosure. By Devlin Barrett Reporting from ...

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

Atlantic publishes attack plan details after Trump, top officials deny classified information was shared in group chat ...