Chapter 11 Intrusion Detection System
Chapter 11 Intrusion Detection System
Chapter 11 Intrusion Detection System
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“Base-Rate Fallacy” Illustrated IDS often suffers from base-rate fallacy¡ intrusions are rare events¡ non-intrusions are common¡ correctly detected intrusions are swamped by incorrectly detectednon -intrusions! Previous example : only 298 out of 2800 alarms (10.6) arecorrect¡ in reality, often less than 1% of alarms are real intrusionsSecurity Spring 2013
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