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.

ThreatCon level-2

Level 2/4: Medium: Increased alertness.

This condition applies when knowledge or the expectation of attack activity is present, without specific events occurring or when malicious code reaches a moderate risk rating. Under this condition, a careful examination of vulnerable and exposed systems is appropriate. Security applications should be updated with new signatures and/or rules as soon as they become available and careful monitoring of logs is recommended. No changes to actual security infrastructure is required.