Root cause
Configuration change
A setting, policy, feature flag or config file pushed to production broke something.
Incidents per month
December 2025November 2026
Incidents
Questions
How common are outages caused by configuration change?
103 incidents in the last 12 months across the vendors tracked here were traced to configuration change in the vendors' own words.
How is this cause identified?
From the sentences where the vendor explains why the incident happened, or by hand for landmark postmortems. Symptoms like "elevated error rates" are never counted as a cause.