What process involves comparing monitored events to a specific attack model to determine if it qualifies as an intrusion?

The process that involves comparing monitored events to a specific attack model to determine if it qualifies as an intrusion is best described by signature-based detection. This technique relies on known patterns of malicious activity or attack signatures that have been previously identified.

In signature-based detection, security systems maintain a database of signatures associated with known threats. When an event occurs, the detection mechanism checks it against these signatures to identify matches. If a match is found, it indicates that the activity aligns with a recognized attack model, leading to the classification of the event as an intrusion.

This approach is widely used because it is effective at quickly detecting known threats; however, it is less effective against new, unknown, or modified attacks that do not have a corresponding signature. This characteristic differentiates it from other methods like anomaly-based detection, which looks for deviations from normal behavior but does not rely solely on known attack models. Therefore, signature-based detection accurately fits the description of comparing events to specific attack models in identifying potential intrusions.