Learn why encryption keys matter more than encryption itself when choosing the best secure email—covering key ownership, access control, privacy risks, and true end-to-end security.

Tuta Mail has announced TutaCrypt, a new post-quantum encryption protocol to secure communications from powerful and anticipated decryption attacks. Tuta Mail is an open-source end-to-end encrypted ...

The Signal Foundation, maker of the Signal Protocol that encrypts messages sent by more than a billion people, has rolled out an update designed to prepare for a very real prospect that’s never far ...

Today we are announcing the most significant cryptographic security upgrade in iMessage history with the introduction of PQ3, a groundbreaking post-quantum cryptographic protocol that advances the ...

The Automated Certificate Management Environment (ACME) protocol was developed to improve Internet security and is intended for use with the Let's Encrypt service. Security engineer Christophe Brocas ...

I have been moving from Google and Microsoft to Proton products. Proton's email and other products include encryption by default, and password-protecting messages adds a layer of security. However, I ...

Despite the promises of OPC UA, a standardized, open source communication protocol often used in industrial settings as a replacement for VPNs, turns out to have a number of vulnerabilities, issues, ...