Sensitive personal data, meaning data very likely to harm the person if disclosed (for example a home camera feed, payment details, the content of communications, or location with a timestamp), are kept confidential with best practice cryptography while travelling between the device and associated services. Status in Table B.1: M F (u) (mandatory, a shall provision; applies only where sensitive 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.