The purpose of an intrusion detection system includes deterring, detecting, and what other function related to intrusion?

An intrusion detection system (IDS) is primarily designed to monitor systems and networks for malicious activity or policy violations. One of its key functions, beyond deterring and detecting intrusions, is to document security incidents. This documentation typically involves keeping logs of detected threats, intrusion attempts, and their characteristics, which can be invaluable for analysis, reporting, and enhancing future security measures.

Effective documentation enables organizations to understand the nature and frequency of attacks, track down the source of an intrusion, and strengthen their defenses over time. Accurate records also facilitate compliance with regulatory requirements and assist in investigating security incidents. While functions like preventing, escalating, or mitigating intrusions are important aspects of an overall security strategy, the key role of documentation within an IDS is to ensure that incidents are captured and can be reviewed and analyzed to improve security posture.