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.


A measurement of the global information technology threat exposure, delivered as part of Symantec DeepSight Threat Management System.

The Symantec's DeepSight ThreatCon rating system is based on a combination of human and machine intelligence observed and gathered in the previous 24-hour period. It can be dominated by one or the other depending on the day. The DeepSight Threat Analysts update the ThreatCon rating as conditions warrant.