What is superuser? - Definition from WhatIs.com
Part of the Network administration glossary:

A superuser is a network account with privilege levels far beyond those of most user accounts.

Superuser accounts may belong to network or system administrators, database administrators (DBAs), CIOs or CEOs. In larger enterprises, a superuser account is often accessed by multiple users. 

Superuser accounts are necessary for platform management functions but it's necessary to control and oversee them. Because these accounts have elevated access rights, those with access can bypass the internal controls of the target platform. Once these controls are bypassed, users can breach confidential information, change transactions and destroy audit data. 

To protect corporate networks from misuse or abuse of superuser accounts, privileged identity management (PIM) policies and processes should be established. 

This was last updated in November 2013
Contributor(s): Ivy Wigmore
Posted by: Margaret Rouse

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