Building an Effective Root Cause Analysis Practice: The 8-step Guide for Continuous Improvement in IT and Security Incidents

Root cause analysis (RCA) is a structured method for determining how and why an incident occurred, separating initiating causes from contributing conditions and symptoms. A strong RCA connects evidence to corrective actions, verifies that fixes work, and turns each incident into measurable improvement across people, process, technology, and telemetry. A repeatable RCA practice follows five phases: Detect: identify an incident, confirm impact, and preserve the initial signal.