CMMC vs ISO 27001 vs SOC 2: What Transfers?

Where programmes overlap

• Governance, risk assessment, access control, encryption, vulnerability management, and incident response practices often align at the control-intent level.
• Central evidence repositories and continuous logging reduce duplicate fieldwork across frameworks.

Where CMMC diverges

CUI handling, specific NIST SP 800-171-aligned practices (as required by the applicable CMMC level), assessor ecosystem rules, and contractual affirmation obligations are defence-specific. SOC 2 trust services criteria and ISO Annex A controls are different taxonomies — map explicitly.

Practical reuse playbook

Keep one control library with framework tags. Link each CMMC practice to existing ISO/SOC evidence, then close gaps with CUI-focused procedures, media protection, and assessment-ready SSP packages.

How CyberSilo Helps

• Evidence mapping in CyberSilo CSA
• Detection and logging proof with ThreatHawk SIEM
• Advisory scoping — contact CyberSilo

Frequently Asked Questions

Does ISO 27001 certification equal CMMC?

No. It can accelerate readiness but does not replace a CMMC assessment pathway.

Does a SOC 2 Type II help?

Yes as supporting evidence of operating effectiveness for overlapping domains — still map to CMMC practices.

Should we pursue all three?

Often yes for commercial plus defence customers; sequence by contract pressure and shared control coverage.

Related Resources

• CMMC hub
• ISO 27001 hub
• SOC 2 hub