Any safe, whether it is fireproof or resistant to hacking, should have a reliable lock. The expression "safe lock" appeared not just like that. Castles can be divided into key and code. If the lock is key, then pay attention to the key. There should not be any metes. Micron accuracy of manufacture - guarantee from hacking. Coded mechanical castle is more reliable. There is no need to carry a key with you, and the code, unlike the key, is not lost. But if someone is known to someone, then you have to change the entire lock.
