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

A security information and event management (SIEM) system is designed to aggregate and analyze security data from various sources within an organization's IT infrastructure. It collects log and event data generated by applications, devices, and systems across the network, providing a centralized view of security-related incidents and alerts. This capability enables organizations to detect, analyze, and respond to potential security threats in real time.

SIEM systems play a critical role in enhancing an organization's security posture by correlating data from different sources, enabling security teams to identify patterns and anomalies that could indicate a security breach. They often come with features such as real-time monitoring, compliance reporting, and incident response support, making them a vital tool in the cybersecurity landscape.

In contrast, options that describe a firewall solution or a backup system do not encompass the comprehensive data aggregation and analysis capabilities that define a SIEM system. Monitoring employee productivity is unrelated to security management and does not focus on protecting an organization from cyber threats. Thus, the correct choice emphasizes the core function of a SIEM system in the realm of security management.