Aggregation: This function reduces the volume of event data by consolidating duplicate event records. It collects log data from various sources and consolidates it to minimize redundancy and volume.
Correlation: This function speeds detection of and reaction to security threats by examining logs and events from different systems. Correlation involves analyzing and cross-referencing logs and events to identify patterns that may indicate a security incident.
Reporting: This function presents event data in real-time monitoring and long-time summaries. Reporting tools within a SIEM system help in visualizing data, providing summaries, and detailing security events over time for analysis.
Forensic Analysis: This function involves searching logs and events from sources throughout the organization for complete information analysis. It is a deeper examination of logs to investigate and uncover the root cause or the full scope of a security incident after it has been identified.