Scoping call
Frameworks / CSA STAR

CSA STAR Level 1 and Level 2 for cloud and AI providers.

CSA STAR is the Cloud Security Alliance’s assurance program for cloud services. Providers publish their security posture in the public STAR Registry, and enterprise buyers check it during procurement. Level 1 is a self-assessment questionnaire, the CAIQ (Consensus Assessments Initiative Questionnaire). Level 2 adds an independent audit.

283
Questions in the CAIQ v4.1
207
Controls in the Cloud Controls Matrix v4.1
17
Control domains in the CCM
1 yr / 3 yr
Validity of Attestation / Certification
Source: Cloud Security Alliance STAR program and CCM v4.1 documentation. Status as of October 2026.
How we help

An extension of your SOC 2 program.

STAR Level 2 Attestation is a SOC 2 audit that also tests the Cloud Controls Matrix, so it builds directly on our SOC 2 work. We map your controls to the CCM, close the gaps, and prepare you for the combined audit with the CPA firm you choose.

For Level 1, we prepare the CAIQ answers and evidence with your team, and your company submits them to the STAR Registry.

STAR levels

A self-assessment, or an audit that includes the Cloud Controls Matrix.

Level 2
Level 1
Base
CCM v4.0 is accepted until December 2027.
Cloud Security Alliance, STAR program and CCM v4.1 (January 2026).

CSA also runs STAR for AI, which uses the AI Controls Matrix for companies that build AI services.

Common questions

CSA STAR questions.

Which level do buyers ask for?

It depends on the buyer. Level 1 publishes your answers. Level 2 shows that an independent auditor checked them. If a contract names a level, that settles it.

We already have SOC 2. What does Level 2 add?

STAR Attestation adds the Cloud Controls Matrix to your SOC 2 scope. Your auditor tests the added criteria in the same engagement, so the extra work is the CCM controls your SOC 2 does not already cover.

Is CCM v4.0 still accepted?

The STAR Registry accepts both v4.0 and v4.1 until December 2027. After that, only v4.1 submissions are accepted.

Buyer asking for CSA STAR?

On a scoping call we’ll tell you which level fits and what it will take.