privileged user
[Data Security]
A user who, by virtue of function or seniority, has been allocated powers within a system that are significantly greater than those available to the majority of users.
Such persons will include, for example, the system administrator(s), storage administrator(s), and network administrator(s) who are responsible for keeping the system available and may need powers to create new user profiles as well as add to or amend the powers and access rights of existing users.