Top national security officials — in the White House, the Pentagon and the State Department — couldn’t provide answers.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Roughly a week after Donald Trump started his second term as president, the U.S. military issued an order to three freight ...

A hacker breached TeleMessage, a government-approved messaging app used by Trump administration officials, exposing archived ...

The suspension reportedly affected 11 shipments of artillery shells and weapons from Dover Air Force Base and a U.S. base in ...

Marco Rubio serving as both Secretary of State and national security adviser could be "ultimately disadvantageous" to ...

The Washington Post reported that Donald Trump soured on Waltz over Waltz's support for an Israeli attack on Iran.

A clone of the messaging app Signal, which was used by since-ousted national security advisor Mike Waltz, has been hacked.

President Donald Trump said Sunday that he plans to appoint a new national security advisor in about six months, telling ...

Mike Waltz was removed as national security advisor, followed by the president nominating him for another position.

"I think it will be a brutal confirmation hearing," Sen. Mark Warner said of Mike Waltz. "I think he's going to have tough ...

Trump unveiled a major staff shakeup and announced that National Security Advisor Mike Waltz would depart his post at the White House.