The situation of access control being hacked is different, which can be roughly divided into: artificially changing the authority, that is, everyone has no authority to enter the door, and only when it is hacked can they have authority. Second, if it is completely destroyed, no one can get in.

Man-made destruction is inevitable. You can completely avoid being modified by others, and you can completely avoid being hacked at the beginning of the design of the access control system.