The encrypted messaging app Signal has become a critical tool for organizers following the actions of immigration agents in ...

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

FBI Director Kash Patel said that he had opened an investigation into the Signal text chats that Minnesota residents are using to share information about ICE.

Republican prosecutor Brad Miller denied that he has Signal on his phone, but Phoenix New Times has seen the messages.

Former national security adviser Mike Waltz, testified before the Senate Foreign Relations Committee in his bid to become U.N. ambassador, stood by the use of Signal in a chat that discussed sensitive ...

WASHINGTON (AP) — Defense Secretary Pete Hegseth had an internet connection that bypassed the Pentagon’s security protocols set up in his office to use the Signal messaging app on a personal computer, ...

US Defense Secretary Pete Hegseth risked endangering troops by using the Signal messaging app to discuss a strike on Houthis in Yemen, sources say a Pentagon watchdog report finds.Key points Hegseth's ...

WASHINGTON, D.C. – The Pentagon's internal watchdog has concluded a monthslong review of Secretary of Defense Pete Hegseth's improper use of the Signal app to discuss sensitive military operations.