InformationThe system _MUST_ not have the Unix-to-Unix Copy Protocol (UUCP) service active.
UUCP, a set of programs that enable the sending of files between different UNIX systems as well as sending commands to be executed on another system, is not essential and _MUST_ be disabled in order to prevent the unauthorized connection of devices, transfer of information, and tunneling.
NOTE: UUCP service is disabled at startup by default macOS.
/bin/launchctl disable system/com.apple.uucp
The system may need to be restarted for the update to take effect.