A high-profile data leak sheds light on a privacy app popular among journalists and Beltway types. Is it safe?

And now, a whole lot more of us know about Signal, a commercial messaging app that is celebrated for ... here are some tips on its pros and cons as a tool for secure communication.

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its ...

President Trump said his national security adviser, Mike Waltz, "learned a lesson" after he opened up a secret chat of Trump officials to a reporter.

Senior Trump administration officials used the commercial messaging app Signal to debate the pros and cons of launching military strikes against the Houthis in Yemen and accidentally invited ...

here are some tips on its pros and cons as a tool for secure communication. Signal is a secure messaging service that “provides end-to-end encryption, meaning Signal can't access or read private ...