I think you're confused a bit here. The mechanism is known for a door lock. It's a lock with a key. What they don't have is the key. If you leave your door ke

I think you're confused a bit here. The mechanism is known for a door lock. It's a lock with a key. What they don't have is the key. If you leave your door key, or RSA key, lying around where it's easy to find, well...that's a separate problem.