False Positive Generation occurs when the IDS generates an alarm under which condition?

False Positive Generation occurs when the IDS generates an alarm under which condition?

• A. False Positive Generation is when the IDS alarms with no warrant
• B. False Positive Generation is when the IDS alarms during an actual intrusion
• C. False Positive Generation is when the IDS fails to alert on an intrusion
• D. False Positive Generation is when the IDS blocks legitimate traffic

Answer: (A)

False positives happen when the IDS triggers an alert for benign activity—that is, there’s no real threat behind the event. It flags normal or harmless behavior as if it were malicious, based on patterns that are too broad or misconfigured. So the alert is issued without a warrant of an actual intrusion. This is the hallmark of a false positive: an alarm raised when there isn’t a true problem. In contrast, an alert during a real intrusion is a true positive, and missing an intrusion is a false negative. Blocking legitimate traffic is an operational action, not simply an alarm, and isn’t the scenario described by false positive generation.

False positives happen when the IDS triggers an alert for benign activity—that is, there’s no real threat behind the event. It flags normal or harmless behavior as if it were malicious, based on patterns that are too broad or misconfigured. So the alert is issued without a warrant of an actual intrusion. This is the hallmark of a false positive: an alarm raised when there isn’t a true problem. In contrast, an alert during a real intrusion is a true positive, and missing an intrusion is a false negative. Blocking legitimate traffic is an operational action, not simply an alarm, and isn’t the scenario described by false positive generation.