How do security information and event management (SIEM) systems function?

Security Information and Event Management (SIEM) systems collect and analyze security data by gathering logs and data from various sources such as network devices, servers, applications, and other security tools within an organization. These systems use agents, APIs, or log forwarding techniques to centralize these logs and data in a single location. Once the data is aggregated, SIEM systems use correlation, pattern recognition, and rules to analyze the data for security events, threats, and anomalies. Alerts and reports are generated based on this analysis to help security teams detect, investigate, and respond to potential security incidents.