Personal data exchanged between the device and associated services (typically cloud services the manufacturer controls) are kept confidential using best practice cryptography that suits the technology, the environment, the risk and how the device is used. Status in Table B.1: R F (t) (recommendation, a should provision; applies only where personal data travels from the device to associated services).
This control maps to 2 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 2 it maps to, and the evidence behind each claim, over MCP and REST.