What is meant by 'access control' in security?

Access control in security refers to the limitations placed on who can enter certain areas of a property. This concept is essential for maintaining safety and security within an environment, as it helps to ensure that only authorized individuals are permitted to access sensitive or restricted areas. By implementing access control measures, security personnel can effectively manage and restrict entry based on predefined criteria, such as security clearances, identification badges, or biometric verification.

This systematic approach to regulating access not only protects valuable assets and sensitive information but also helps prevent unauthorized entry that could lead to security breaches or potential harm. The other options suggest a lack of restrictions or open access, which contradicts the fundamental purpose of access control in establishing secure environments.