Also known as: SIEM Ingestion, Log Ingestion
The process of receiving security events and telemetry from endpoints, identities, networks, cloud services, applications, and other sources into a SIEM or data platform.
Security data ingestion is the entry stage of the SIEM data flow. Sources send or expose events through agents, APIs, syslog, collectors, files, queues, or other supported methods.
Ingestion is also a common pricing meter. A buyer should confirm whether billable volume is measured before or after filtering, parsing, and normalization, and what happens when actual volume exceeds the contracted amount.
Receiving bytes does not prove the events are usable. Source health, field mapping, timestamps, and parsing still need verification.