ISC2 Governance, Risk and Compliance (CGRC) Practice Question
You are drafting an implementation strategy for a new cloud-based HR system. Senior management requires compliance with both NIST SP 800-53 Rev. 5 and ISO/IEC 27001:2022. Which action will best ensure that the selected security and privacy controls satisfy both frameworks without unnecessary duplication?
Adopt the strictest requirement from either framework case-by-case and record the rationale in the POA&M after deployment.
Rely on the cloud provider's default security settings and add missing safeguards during the first annual audit cycle.
Postpone any formal comparison until the assessment phase and implement compensating controls for any gaps that auditors find.
Create a detailed control-mapping matrix that cross-references each NIST 800-53 control to its equivalent ISO/IEC 27001 requirement before finalizing the build plan.
Building a control mapping (or cross-walk) matrix lets the implementation team line up each NIST SP 800-53 control with the corresponding ISO/IEC 27001 clause. This reveals overlaps, gaps, and differing requirements early, so the project can adopt a single set of controls that demonstrably fulfills both standards. Simply choosing the strictest control ad hoc, relying on vendor defaults, or waiting until an audit to resolve discrepancies risks missed requirements, redundant effort, and higher cost. A formally documented cross-reference is therefore the most effective way to align the strategy with multiple compliance frameworks.
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ISC2 Governance, Risk and Compliance (CGRC)
Implementation of Security and Privacy Controls
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