Protect credentials, especially highly privileged accounts: implement multi-factor authentication where possible, reduce privileges to least necessary, enforce secure password policy (length over complexity), ensure unique credentials for all accounts including system/non-interactive, and rotate at least every 90 days. Require separate credentials and trust stores for corporate versus control-network zones and never share Active Directory or other trust stores between them.
This control maps to 3 controls across 2 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 3 it maps to, and the evidence behind each claim, over MCP and REST.