The entity's infrastructure must keep systems performing different functions physically or logically separated and isolated from one another and from the systems of third parties, so that a security incident stays contained. Where a system is made of subsystems the separation is applied at the last physical or logical level: the ordinance's example is a web server, application server and database server of one information system placed on different machines and in different networks.
This control maps to 1 controls across 1 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 1 it maps to, and the evidence behind each claim, over MCP and REST.