Add Yahoo as a preferred source to see more of our stories on Google. WASHINGTON — Elon Musk’s team at the so-called Department of Government Efficiency has posted classified information about the ...

Former White House National Security Advisor John Bolton is expected to plead guilty to one count of retaining classified ...

The former Trump national security adviser plans to plead guilty to a count of illegal retention of classified information, ...

The strength of a new federal acquisition council on supply-chain security lies in its ability to directly involve classified information in agencies’ decisions to buy products and services, according ...

WASHINGTON — The Trump administration’s use of a popular messaging app to discuss sensitive military plans — with a journalist on the text chain — is raising questions about security and the ...

FBI officials announced Thursday that a 28-year-old Defense Intelligence Agency (DIA) employee was arrested for allegedly attempting to transmit national defense information to an officer or agent of ...

Months after an embarrassing leak of military secrets on the online messaging platform Discord — and a manhunt that resulted in the arrest of a National Guardsman — the Pentagon released a review of ...

Former President Donald Trump will be restricted on how and when he can look at, and talk about, classified information, a judge decided Wednesday after a sealed hearing the day before. The decision ...

Defense Secretary Lloyd J. Austin III has directed the military to take a number of steps to protect classified information in response to Massachusetts Air National Guardsman Jack D. Teixeira’s ...

Donald Trump’s lawyers want to be able to discuss classified information with the former president at his homes as part of his criminal case, for convenience sake, according to a new court filing from ...