Detection Engineering with Sigma: Detections That Survive Vendor Churn
How Sigma turns SIEM detections into portable YAML, how pySigma pipelines compile them to any backend, and how to test rules like code with Atomic Red Team.
SIEM Cost in 2026: Splunk vs Sentinel vs Elastic
What a SIEM really costs over three years: Splunk vs Sentinel vs Elastic compared across eight TCO layers, with a 100 GB/day worked example, seven hidden costs, and the RFP questions that expose the real price.