Data loss in DevOps is not rare. It happens fast, and it hurts more than downtime. In a world of continuous delivery and high-velocity deployments, data loss wipes out the context you need to fix, learn, and prevent. Code can be redeployed. Infrastructure can be rebuilt. Lost data is final.
The most common causes are not exotic. A misconfigured cleanup script. An overzealous retention policy. A migration without a proper snapshot. Human error in a pipeline with full permissions. In each case, the damage grows when detection lags behind. In high-change environments, minutes matter.
Prevention starts with making data protection part of the deployment flow, not an afterthought. Every service, every environment, every branch should have clear retention rules. Backups are not enough if they aren’t tested and restored under real conditions. Snapshots must be automated and isolated from the same permissions that could delete them.