eTrust Intrusion Detection defends networks against attacks and enforces corporate security policies.

Intrusion Detection is a discipline used to detect unauthorized access, misuse, abuse, and probing of information systems. They are in a sense "motion detectors" for computers that provide audit trails and evidence of activity so that network administrators can identify and rectify system misuse and other security threats. It maximizes eBusiness profitability by cracking down on the abuse of system resources.