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Network Security Focus-IDS
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IPS false negatives

Subject: IPS false negatives
Date: Thu, 13 Apr 2006 08:38:24 -0700

 Is anyone aware of research that has been done to qualify/quantify the
false negatives that commercial IPS's will pass when running on a
default configuration?

 My understanding is that every IPS ships with only a portion of its
rules activated; the reason being that some suspect traffic can either
be an attack or legitimate network traffic. Therefore, blocking such
traffic can be problematic, and visibility is the only realistic
defense.

~~~~~~~~~~~~~~~~~~
Brian Basgen
IT Security Architect
Pima Community College
 
 

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