Write into customer service agreements that changes touching a customer's own environment or tenant will only be made in response to explicitly authorised requests.
This control maps to 12 controls across 10 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
NIST-CSF-GV.SC-05 Requirements to address cybersecurity risks in supply chains are established, prioritized, and integrated into contracts and other types of agreements with suppliers and other relevant third parties
You are reading one control. How much of Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 have you already done?
Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 CCM-CCC-05 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 your existing evidence covers. Hold NIST SP 800-53 Rev 5 and 140 of 197 Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 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. 12 were rejected on the NIST SP 800-53 Rev 5 pair alone.