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 ...

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

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.” ...

Trump took aim at the encrypted service without specifying why he thought it had issues. “I don’t know that Signal works. I think Signal could be defective, to be honest with you,” Trump ...

Communications on Signal, including Signal Stories and your user profile, are end-to-end encrypted by default. That means the data is scrambled in transit and can only be seen by the sender and ...

White House staffers have come under fire after allegedly using the app to discuss sensitive foreign policy plans.

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 ...

Government ministers routinely use encrypted messaging apps including WhatsApp and Signal amid concerns they might be used to ...