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Cybersecurity glossary

What is SIEM?

Also known as: security information and event management

Definition

A SIEM (security information and event management) system collects logs from across an organization, correlates them and raises alerts for analysts to investigate.

Why it matters

A SIEM is only as useful as the logs it receives and the detections written for it. SOC analysts use it to search events, such as Windows security event IDs, during investigations.

Common questions about SIEM

See also

Sources