What is the main purpose of using access controls in physical security measures?

The main purpose of using access controls in physical security measures is to restrict physical access to authorized personnel. This is crucial for protecting sensitive areas and resources within an organization, such as data centers, laboratories, or areas storing confidential information. By employing various forms of access controls, such as key cards, biometric systems, or security personnel, organizations can ensure that only individuals who have been verified and granted permission can enter specific areas.

Restricting access helps mitigate risks associated with unauthorized entry, which could lead to data breaches, theft, or vandalism. Through proper implementation of access controls, organizations can create a secure environment that protects both physical assets and confidential information from potential threats.

The other options, while relevant in different contexts, do not directly relate to the physical security aspect. Monitoring network traffic pertains to cybersecurity, improving employee productivity focuses on operational efficiency, and maintaining software updates is an aspect of IT security. Thus, while they are important for comprehensive security strategies, they do not address the primary function of physical access controls.