SIEM (Security Information and Event Management) is a platform that aggregates, normalises, and correlates log and event data from across an organisation’s IT estate to detect threats and support compliance. It combines real-time alerting, anomaly detection, and historical search with dashboards and audit reporting. It is a foundational tool of security operations centres and regulatory compliance programmes.
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- Ingest pipelines normalise heterogeneous logs into a common schema, then correlation rules and increasingly machine-learning models surface incidents for analyst triage. Long-term retention serves forensic investigation and audit, while integrations with SOAR enable automated containment and response.