Which constraints justify the use of compensating controls?

Which constraints justify the use of compensating controls?

• A. Financial constraints only
• B. Legal constraints only
• C. Legitimate technical or documented business constraints
• D. Regulatory changes only

Answer: (C)

When you can’t meet a PCI DSS requirement because of real constraints in the environment, compensating controls let you maintain the security objective in a different way. The critical factor is that the constraints are legitimate and properly documented. That means technical limitations (like a legacy system that can’t support a specific control) or documented business constraints (policy, process, or operational realities) that are verifiable and approved. If these constraints exist, you can implement alternative controls that achieve the same level of risk reduction as the original requirement. Those compensating controls must be purposefully designed to meet the original control’s objective, backed by evidence, tested for effectiveness, and continuously monitored. They aren’t justified by financial considerations alone or by regulatory changes; they’re justified only when there’s a real, documented technical or business constraint, and the alternative controls are demonstrably equivalent in protecting the data.

When you can’t meet a PCI DSS requirement because of real constraints in the environment, compensating controls let you maintain the security objective in a different way. The critical factor is that the constraints are legitimate and properly documented. That means technical limitations (like a legacy system that can’t support a specific control) or documented business constraints (policy, process, or operational realities) that are verifiable and approved.

If these constraints exist, you can implement alternative controls that achieve the same level of risk reduction as the original requirement. Those compensating controls must be purposefully designed to meet the original control’s objective, backed by evidence, tested for effectiveness, and continuously monitored. They aren’t justified by financial considerations alone or by regulatory changes; they’re justified only when there’s a real, documented technical or business constraint, and the alternative controls are demonstrably equivalent in protecting the data.