You see HTTP status codes all over: "404 Not Found" for mistyped URLs, "403 Forbidden" for authorization failures and traffic problems read as "503 Service Unavailable". We may now need a new one for legal restrictions, and what could be more fitting than "451" in honor of Ray Bradbury?

Quantum cryptography may be theoretically secure, but in practice, there are certain limitations that allow clever attackers to read encrypted messages. A new system that ditches quantum mechanics for classical mechanics may prove to be even more secure, backed up by the Second Law of Thermodynamics.

It's comforting to know that when the apocalypse does happen, we can repopulate the Earth from the survivors tucked safely away in their luxury condos deep inside a retired missile silo in Kansas. Interest in the "Survival Condo" has been so high that all units in this unique complex 174 feet deep in the Earth have sold out at cost of a cool $2 million apiece.

The use of biometric scans as a security measure is on the rise. We've recently talked about palm print scanenabled ATMs, and now there is a prototype door handle with a built in finger scanner.