Signal and WhatsApp offer some similar security features and certain disparate protections. Here's how the apps compare.

Instead, you need to open and register Signal on the new phone and select an iOS transfer. Then you use a QR code to connect ...

One exception to the industry-wide lethargy is the engineering team that designs the Signal Protocol, the open source engine ...

Signal announced the introduction of Sparse Post-Quantum Ratchet (SPQR), a new cryptographic component designed to withstand ...

A magazine journalist's account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive information is ...

Security specialists Surfshark say that its study of popular messaging apps reveals 90% of them use end-to-end encryption. But while some messaging apps are highly committed to user privacy, their ...

Messaging is still one of the best ways to communicate with your friends and family. To send an SMS, all you need is a SIM card with an active messaging plan installed on your smartphone. But what if ...