A physical access control system is a security mechanism that restricts access to physical locations, such as buildings, rooms, and storage areas. It typically involves the use of access control devices, such as electronic locks, biometric readers, or keycards, to verify the identity of individuals and determine whether they are authorized to enter a particular location.

Physical access control systems can help solve several security problems, including:

  Unauthorized entry

  Theft prevention

  Compliance

  Monitoring and auditing

Overall, physical access control systems are important tools for ensuring the security and safety of physical locations, and can help organizations mitigate various physical security threats.