From video call QR scans to separate PINs, this Coldcard Q review shows how the $249 device brings Snowden-level security to ...

Here's what end-to-end encryption protects—and what it doesn't.

WhatsApp will soon let users connect without revealing their phone numbers. CEO Kunal Shah has announced that usernames are ...

Xen Quantum, which emerged from stealth this week, is using silicon photonics to develop new core architecture which offers ...

Russian intelligence hackers are phishing Signal users for their backup recovery key, giving attackers full access to message history, the FBI warns.

A technical breakdown of how a VPN works: packet handling, protocol comparisons, DNS and WebRTC leak vectors, kill switch ...

The FBI and CISA are warning that a phishing campaign targeting Signal users tied to Russian intelligence services has ...

WhatsApp usernames are now rolling out to more than three billion users, letting people message new contacts without sharing ...

Protect your Model Context Protocol deployments from quantum-era data harvesting. Learn why TLS 1.3 is insufficient and how to implement quantum-resistant security.

The Meta-owned messaging app just unveiled a massive privacy shift that could change how businesses and customers interact.

WhatsApp Update: WhatsApp has quietly shut down a method that let users check if someone had blocked them. The trick involved opening a contact's info screen and checking if encryption verification ...

WhatsApp is set to let people chat without having to reveal their phone number - by exchanging unique usernames instead. It ...