The organization has adopted a 'Defense-in-Depth' strategy. You are tasked with mapping controls to the NIST CSF framework within the GRC tool. What is the most effective way to manage the relationship between framework sub-categories and existing internal controls?
Trap 1: Rename all internal controls to match the NIST sub-category names.
Renaming controls destroys their original identifiers and creates no traceable mapping between NIST sub-categories and internal controls; a GRC tool links them through a mapping or crosswalk relationship. Renaming would be correct only if the organisation wanted control names to mirror framework terminology, not to manage relationships.
Trap 2: Create separate GRC instances for every framework adopted.
Separate instances fragment the control library, so one internal control cannot be linked to sub-categories across frameworks, duplicating evidence and breaking Defence-in-Depth coverage reporting. Separate instances suit wholly segregated business units or regulatory tenants, not a single mapping exercise within one GRC tool.
Trap 3: Hard-code the NIST framework into the GRC platform source code.
Hard-coding fixes the sub-category set at build time, so CSF updates or added frameworks require code changes and redeployment, and controls cannot be re-mapped by GRC administrators. Hard-coding suits a static, single-standard checklist that will never be revised or mapped to other frameworks.
- A
Rename all internal controls to match the NIST sub-category names.
Why it fails: Renaming controls destroys their original identifiers and creates no traceable mapping between NIST sub-categories and internal controls; a GRC tool links them through a mapping or crosswalk relationship. Renaming would be correct only if the organisation wanted control names to mirror framework terminology, not to manage relationships.
- B
Create separate GRC instances for every framework adopted.
Why it fails: Separate instances fragment the control library, so one internal control cannot be linked to sub-categories across frameworks, duplicating evidence and breaking Defence-in-Depth coverage reporting. Separate instances suit wholly segregated business units or regulatory tenants, not a single mapping exercise within one GRC tool.
- C
Use 'Control Mapping' functionality to link internal controls to NIST sub-categories.
Control mapping links each internal control to the relevant NIST CSF sub-categories, producing traceable coverage and gap visibility across the framework. This directly satisfies the requirement to manage relationships between sub-categories and existing controls within the GRC tool.
- D
Hard-code the NIST framework into the GRC platform source code.
Why it fails: Hard-coding fixes the sub-category set at build time, so CSF updates or added frameworks require code changes and redeployment, and controls cannot be re-mapped by GRC administrators. Hard-coding suits a static, single-standard checklist that will never be revised or mapped to other frameworks.