A controller must not offer a direct messaging apparatus for use by a known minor without readily accessible and easy-to-use safeguards limiting the ability of adults to send unsolicited communications to minors they are not connected with; services whose main function is e-mail, or private device-to-device messaging visible only to sender and recipient and not posted publicly, are excluded.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.