What aspect does Goal 4 focus on within PCI DSS?

Goal 4 of the PCI DSS specifically emphasizes the importance of implementing strong access control measures. This goal is vital to ensuring that only authorized personnel have access to cardholder data and related systems. Strong access control mechanisms include unique identification for each person with computer access, secure authentication processes, and restrictions on access based on the principle of least privilege. By mandating strong access control measures, PCI DSS helps prevent unauthorized access to sensitive information, thereby reducing the risk of data breaches and protecting cardholder data integrity.

The focus on access control underlines how critical it is to limit access to sensitive information and to monitor who interacts with this data, as failing to manage access securely can lead to significant security vulnerabilities.