Democratic leaders of key House committees are reigniting calling for National Security Advisor Mike Waltz to step down.

The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...

The encrypted messaging app Signal is receiving ... In a lengthy post to X, Signal addressed this issue by pushing back on the Pentagon’s use of the term “vulnerability.” ...

House Foreign Affairs Committee ranking member Gregory Meeks called the Signal breach 'the most astonishing breach of our ...

Learn more about Signal, including whether the news about its use in a military intelligence breach impacts its effectiveness ...

Martin Heinrich (D–N.M.), Ratcliffe added: "Signal is a permissible use ... in a piece that emphasized transparency concerns around the use of encryption by government officials.

The president of Signal defended the security of the encrypted messaging app on Tuesday after a bombshell report revealed top ...

Okta CEO Todd McKinnon addresses the Signal group chat incident and said it was likely a usability issue rather than cyber ...

It’s an app that can be used for direct messaging and group chats as well as phone and video calls. Signal uses end-to-end ...

Signal's encryption protocol is open source ... should check for a classified message sent through other means. Beyond concerns about security, Signal and other similar apps may allow users ...