Which statement best describes when compensating controls are used in PCI DSS?

Which statement best describes when compensating controls are used in PCI DSS?

• A. A requirement cannot be met explicitly but risk is mitigated via other controls
• B. A requirement is met perfectly
• C. The data is encrypted
• D. The system is offline

Answer: (A)

Compensating controls are a formal way to keep security strong when you can’t meet a PCI DSS requirement exactly as written due to real-world constraints. In that case, you implement alternative controls that provide an equivalent level of protection to the original requirement, and you document and validate them through the assessment process. The key idea is that the risk is mitigated to the same level as the required control, even though the exact control isn’t feasible right now, often with a plan and timeline to eventually meet the standard. This is why the statement describing compensating controls as a way to mitigate risk with other controls when the requirement cannot be met is the best description. In contrast, simply saying the data is encrypted, or that the system is offline, describes specific measures or states rather than the formal compensating-controls process, and “the requirement is met perfectly” means no need for compensating controls.

Compensating controls are a formal way to keep security strong when you can’t meet a PCI DSS requirement exactly as written due to real-world constraints. In that case, you implement alternative controls that provide an equivalent level of protection to the original requirement, and you document and validate them through the assessment process. The key idea is that the risk is mitigated to the same level as the required control, even though the exact control isn’t feasible right now, often with a plan and timeline to eventually meet the standard.

This is why the statement describing compensating controls as a way to mitigate risk with other controls when the requirement cannot be met is the best description. In contrast, simply saying the data is encrypted, or that the system is offline, describes specific measures or states rather than the formal compensating-controls process, and “the requirement is met perfectly” means no need for compensating controls.