The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.


The process of determining the type of activities or access that is permitted on a network. Usually used in the context of authentication: once you have authenticated a user, the user is authorized to have access to a specific service.

The process of granting or denying access to a specific network resource or domain based on the user’s identity.