Network and service providers must use appropriate technical means to protect stored data relating to the operation of the network or service and the network functions under their control, from anything involving a risk of security compromise. In particular, workstations through which significant changes can be made to security critical functions must not be exposed to incoming signals (or, when used remotely, to any signals beyond those needed to make authorised changes).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.