The Justice Department secured a prison sentence against a hacker who tried to ransom stolen corporate intellectual property obtained from a major international technology company.

A former intelligence employee admitted using encrypted communications to offer sensitive national-security documents to an unspecified foreign government.

A federal judge in Washington sentenced a U.S. citizen to two years in prison after a counterintelligence investigation found the individual had acted as an unregistered agent o...

U.S. Air Force Special Operations Command used the new low-yield precision weapon against militant targets in Africa, providing an operational test of the missile in combat.

Administration envoy Jared Kushner returned from Gaza without a ceasefire agreement while negotiations over ending the war in Ukraine remained delayed, adding pressure on the Wh...

The 84-year-old Kentucky Republican returned to the Senate floor after a serious fall in June and supplied the vote needed to break a deadlock over a conservative nominee to an ...

Financial disclosures showed President Donald Trump gave three senior aides, including Natalie Harp and Margo Martin, $45,000 each in personal cash gifts in addition to their fe...

An internal oversight report found migrants being held in severely cramped enclosures at detention facilities, increasing scrutiny of the Trump administration's border enforceme...

The organizer of a $245 million international digital-asset fraud scheme pleaded guilty in federal court in Washington, extending U.S. enforcement against cross-border cryptocur...

President Donald Trump agreed to stronger disclosure requirements for officials involved in digital-asset regulation as part of a compromise intended to move comprehensive crypt...

The Defense Department requested industry proposals for software-defined encryption systems as military planners prepare for the risk that future quantum computers could defeat ...

The U.S. Army is using machine-learning systems to autonomously identify and respond to sophisticated cyber threats across Defense Department networks before human operators int...