BSI C5

Cloud service providers have the opportunity to improve their IT security level by implementing the requirements of BSI C5. Conformity with the regulations contained therein in accordance with defined standards can be verified by an auditor and proven to any customers of the cloud provider.

The BSI C5 criteria catalogue in conjunction with ISAE 3000 can be used by auditors as an audit criterion for cloud providers. An audit of the BSI C5 criteria in accordance with ISAE 3000 would aim to determine in detail whether the cloud provider has implemented the security measures and processes defined in BSI C5 and whether these are effective.

ISAE 3000 is an internationally recognised standard, which makes it possible to compare the results of audits carried out in different countries and by different service providers. ISAE 3000 ensures that audits are carried out using standardised methods, which in turn increases the quality and credibility of the audit results. Customers who rely on cloud providers to be BSI C5 compliant can rely on the ISAE 3000 audit, which helps to build trust in the provider's services. In addition, organisations can use the results of the BSI C5 audit conducted in accordance with ISAE 3000 for their in-house risk management and governance processes to ensure that the collaboration with the cloud provider meets the necessary information security requirements.

The use of BSI:C5 in conjunction with ISAE 3000 audits enables cloud providers to demonstrate in a structured and transparent way that the underlying risk management and governance processes are in place.