Document, communicate and make available policies governing third parties whose services support the cloud service, covering procurement risk assessment, subcontractor classification, security and training obligations, legal duties, vulnerability handling, contractual wording, monitoring, and flow down to their own providers.
C5 (Germany) SSO-01 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of C5 (Germany) your existing evidence covers. Hold Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 and 95 of 121 C5 (Germany) controls already carry evidence.
Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 0 were rejected on the Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 pair alone.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.