When selecting a cloud provider, which of the following provides the MOST comprehensive information regarding the current status and effectiveness of the provider's controls?

A globally recognized certification indicates compliance with a standard but does not provide the granular, detailed information on control implementation and effectiveness found in the full audit report.

Third-party audit reports, such as SOC 2 or ISO 27001 audit reports, provide an independent and objective evaluation by external auditors of the design and operational effectiveness of a cloud provider's security and other relevant controls, offering detailed assurance.

A Control Self-Assessment (CSA) is an internal review by the provider, which lacks the objectivity and independent validation of an external third-party audit.

A maturity assessment evaluates the sophistication of processes over time but does not offer specific, point-in-time evidence of the effectiveness of individual controls.