What is the main role of access control in security?

The main role of access control in security is to restrict unauthorized entry to a facility or area. This process is essential in ensuring that only individuals with the proper credentials or permissions can enter specific locations, providing a crucial layer of protection against potential threats, such as theft, vandalism, or even harm to individuals inside.

Access control utilizes various methods, including physical barriers (such as locks and gates), electronic systems (like key cards, biometric readers, or facial recognition), and policies (defining who can access what areas and under what circumstances). By implementing access control measures, organizations can effectively manage who can enter their facilities and secure sensitive areas, safeguarding assets and maintaining a safe environment.

While managing traffic flow, monitoring employee conduct, and enhancing surveillance can be components of a broader security strategy, they do not capture the primary purpose of access control, which is fundamentally about preventing unauthorized access and protecting persons and property.