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Reducing false positives have been one of the toughest challenges and a very practical problem in real life deployments of intrusion detection systems. It leads to decreased confidence in the IDS alerts. The security analyst is faced with the choice between disabling valuable signatures that also generate false positives on one hand, and missing true alerts among the flood of false positives on the...
With the imminent roll-out of the 3GPP IP Multimedia Subsystem (IMS), IMS-specific security threats and corresponding counter-mechanisms are gaining increasing attention. One of the most promising recent intrusion detection approaches dealing with unforeseen anomalies caused by flooding attacks is based on a specific metric for the distance between two empirical probability distributions, the so-called...
Intrusion detection systems (IDS) and intrusion prevention systems (IPS) are now considered a mainstream security technology. IDS and IPS are designed to identify security breaches. However, one of the most important problems with current IDS and IPS is the lack of the ldquoenvironmental awarenessrdquo (i.e. security policy, network topology and software). This ignorance triggers many false positives...
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