The alarm hits without warning. Your infrastructure is not what you thought it was. A config changed, a permission shifted, a resource disappeared. This is infrastructure drift, and if you manage Infrastructure as Code (IaC), you already know the damage it can cause.
IaC drift detection is the act of finding deviations between your code and the actual state of your cloud resources. The pain point is brutally simple: drift happens faster than you can catch it, and by the time you do, production may be broken, security may be exposed, and compliance may be gone.
The common causes are clear. Manual changes in the console. Untracked scripts run under pressure. Third-party tools modifying resources across environments. API changes from your providers. Each event chips away at the trust between your code and reality.
The failure mode is silent. Most teams assume their deployment pipeline gives them control. Without continuous IaC drift detection, that control is an illusion. Looking at old Terraform, Pulumi, or CloudFormation files won’t save you when your infrastructure has already moved beyond them.