The Unix-to-Unix CoPy system (UUCP) is a collection of programs primarily used for transferring files between UNIX systems, sending mail to users on remote systems, and executing commands on remote systems. For a more detailed description of aspects of UUCP related to computer security consult [GS91]. For a complete description of UUCP consult a UNIX vendor's manuals, e.g., [SUN90b].
It is possible for UUCP to be used for unauthorized access. Section 10.2.5 describes a few ways to make UUCP more secure.