Where In-Stream Detection Fits in a Modern SecOps Strategy

Summary

An explainer argues that running single-event and short-window detections in data pipelines can reduce detection delays and expand coverage, while SIEMs and federated queries remain useful for longer lookbacks and other needs.

Key points

• The article distinguishes single-event matching from correlation, which connects multiple events, observations, or entities.
• It argues that SOC timing metrics often start when an alert appears, leaving collection, ingestion, indexing, and scheduled-search delays uncounted.
• Citing CrowdStrike, the article says average breakout time in 2025 was 29 minutes, with a fastest recorded case of 27 seconds.
• It says pipeline-based detections can surface some alerts in seconds and cover data sources that organizations do not centrally store, including DNS, proxy, flow, and raw endpoint telemetry.
• The author recommends placing single-event and short-correlation detections in the pipeline, while using systems with longer lookbacks for detections that need hours of data.
• The article presents in-stream detections, scheduled SIEM queries, and API-based federated searches as complementary parts of a detection capability.

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