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CSA STAR vs SOC 2 for Cloud Providers

CSA STAR is CCM-centric cloud assurance; SOC 2 is AICPA Trust Services Criteria. How cloud providers use both without treating them as interchangeable.

Published: September 2026 Compliance · CSA CCM / STAR 8–12 min read

Procurement often asks for SOC 2 and cloud-specific assurance. CSA STAR answers the CCM-shaped question; SOC 2 answers the Trust Services Criteria question.

Related: Hub · SOC 2 hub · CCM v4.

Difference that matters: SOC 2 reports are issued under AICPA standards against Trust Services Criteria. CSA STAR Level 1/2 centres on the Cloud Security Alliance CCM. Mapping helps reuse evidence; it does not make the reports identical.

When STAR Helps Most

When SOC 2 Helps Most

Practical Strategy

Run one control library; emit SOC 2 and CCM/STAR views. Use CyberSilo CSA to keep both maps current.

How CyberSilo Helps

Reuse Evidence Across STAR and SOC 2

Link shared controls once; keep framework-specific artefacts explicit.

Frequently Asked Questions

Does SOC 2 replace STAR?

Not for buyers who specifically require CCM/CAIQ or STAR registry claims.

Does STAR replace SOC 2?

Not for buyers standardised on AICPA SOC reports.

Can one audit produce both?

Firms sometimes coordinate scope; still expect distinct reports/artefacts.

Hub · SOC 2 · ISO 27001

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