The function of a monitoring system in network security is to continuously observe and analyze network activity to detect any security threats, intrusions, or vulnerabilities. These systems utilize various tools like intrusion detection systems (IDS) and log management to assess data packets and user behaviors. By identifying suspicious activities promptly, they can trigger alerts and activate protective measures, mitigating potential breaches. Additionally, they facilitate compliance with security regulations by maintaining detailed records of network activity, thereby supporting an organization’s overall cybersecurity strategy.