What is the primary objective of Requirement 11?

The primary objective of Requirement 11 is to regularly test security systems and processes, which is indeed encapsulated in the correct answer. This requirement is part of the PCI DSS framework intended to ensure that organizations continuously evaluate the effectiveness of their security measures. By regularly testing security systems, organizations can identify vulnerabilities, assess their security posture, and ensure that protective measures remain effective against emerging threats.

This ongoing testing includes a variety of activities such as vulnerability scans, penetration tests, and monitoring of networks and data processes. These activities help organizations remain proactive in their defense strategies and adapt to new challenges in a dynamic threat landscape.

While the other options touch upon important aspects of data protection and security, they do not capture the essence of Requirement 11 specifically. Identifying access to sensitive data and restricting physical access to cardholder data are both important components of overall security policies, as is maintaining information security policies, but Requirement 11 distinctly emphasizes the necessity of regular testing to ensure those policies and protections are functioning as intended.