By Erin Banco, Phil Stewart, Gram Slattery and Mike Stone NEW YORK/WASHINGTON (Reuters) - Roughly a week after Donald Trump ...

The messaging app TeleMessage recently announced that it was suspending its services after being hacked, which caused concern ...

The pause led to 11 flights loaded with artillery shells and other weaponry and bound for Ukraine being stopped, Reuters said.

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.