On my new house I would like to install a lock on the door that cannot be picked even be a professional locksmith. Does such a lock exist. I have heard about electronic locks that use a small keyboard built into it, then you make a password and then enter your password to open the lock, and also another lock that uses your fingerprint. Can these be picked? And what happened when the battery runs out are you locked out forever? Also the one that uses your fingerprint is is possible for someone to extract your saved fingerprint from it?