Access Control (Password Door) refers to the practice of regulating entry to resources or areas within a system or physical space. It encompasses authentication, authorization, and accountability. Authentication confirms the identity of users, while authorization determines their level of access based on permissions. Access Control ensures confidentiality, integrity, and availability of data, protecting against unauthorized access or misuse. It is implemented through various mechanisms such as passwords, biometrics, access cards, and encryption, crucial for maintaining security in both digital and physical environments.
