A user (usually a person) that accesses a system from a position that is outside the system's security perimeter. (Compare: authorized user, insider, unauthorized user.)
A user (usually a person) that accesses a system from a position that is outside the system's security perimeter. (Compare: authorized user, insider, unauthorized user.)
Tutorial: The actions performed by an outsider in accessing the system may be either authorized or unauthorized; i.e., an outsider may act either as an authorized user or as an unauthorized user.