What is the function of a security information and event management (SIEM) system?

The function of a security information and event management (SIEM) system is to aggregate and analyze security data. SIEM systems are designed to collect log data and security events from various sources within an organization's IT infrastructure, including firewalls, intrusion detection systems, and servers. By centralizing this information, the SIEM can provide real-time analysis and alerting for potential security threats or breaches.

This capability allows organizations to identify patterns, track unusual activities, and respond to security incidents more effectively. Additionally, SIEM systems play a crucial role in compliance monitoring by maintaining logs for audits and regulatory requirements. Overall, the aggregation and analysis of security data are essential for maintaining a proactive security posture and improving incident response capabilities.