Mike Waltz seemed to use the app at last week's Cabinet meeting, according to a photograph published by Reuters.

The communications app used by U.S. President Donald Trump's former national security adviser, Mike Waltz, said Monday that it had suspended services following a reported hack that exposed some of its ...

Signal, the most secure widely available messaging app, has become a go-to resource ... has rocked the worlds of politics and national security. The app made headlines Monday after Atlantic ...

Signal touts the privacy of its service — and experts agree ... Beyond concerns about security, Signal and other similar apps may allow users to skirt open records laws. Without special ...

The new product, Traceable Cloud Web Application and API ... mitigation and distributed denial of service defense into a unified platform designed to help security and engineering teams ...

A bug in the iOS Passwords app that meant iPhone users were susceptible to potential phishing attacks has been fixed after possibly being present for years. In a note on its security page ...