Conservative activist Laura Loomer targeted a deputy national security adviser and questioned whether he is to blame for the Trump administration including a journalist in a Signal group text about ...

President Trump on Thursday confirmed a reported purge of national security agencies this week, with firings of at least a ...

Mike Waltz has been in the spotlight since he created a group chat on the messaging app Signal to discuss sensitive ...

The Pentagon’s acting inspector general will review Defense Secretary Pete Hegseth’s use of the Signal app to coordinate ...

Welcome to the Fox News Politics newsletter, with the latest updates on the Trump administration, Capitol Hill and more Fox ...

Welcome to The Hill’s Defense & NatSec newsletter{beacon} Defense &National Security Defense &National Security   The Big ...

The NSA has highlighted the risks of user behavior in secure messaging, focusing on Signal's Linked Devices and Group Invite ...

US President Donald Trump sacked six staffers of Mike Waltz’s National Security Council after holding a meeting with ...

More than 160,000 people have been killed in Yemen, according to an ACLED report, and 19,200 civilians, including more than 2 ...

President Donald Trump said Thursday that he’s fired “some” White House National Security Council officials, a move that ...