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Glossary of Computer Forensics Terms

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Term Definition
Anomaly detection

A label for the class of intrusion-detection tactics that seek to identify potential intrusion attempts by virtue of their being (presumably) sufficiently deviant (anomalous) in comparison with expected or authorized activities. Phrased another way, anomaly detection begins with a positive model of expected system operations and flags potential intrusions on the basis of their deviation (as particular events or actions) from this presumed norm.

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