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Intrusion detection system (IDS)

A collection of one or more sensors, often linked to management software, used to detect and report the existence of security vulnerabilities on a network.

From Tech Insider: Intrusion detection, Network World, 06/24/02.

Additional resources

From intrusion detection to intrusion prevention
Network World Buzz Issue, 09/23/02.

Latest intrusion detection news
And analysis, from Network World.

Research: Intrusion detection
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