IAC drift detection is the process of comparing the live state of your cloud resources to the state defined in your Infrastructure as Code files. Without it, environments quietly diverge. Small changes stack up, and by the time you notice, you may be debugging outages or inconsistent configurations.
The challenge comes when your systems use outbound-only connectivity. This means you cannot simply pull real-time state from resources or run deep inspections from the outside. Standard drift detection tools often rely on inbound webhooks or open ports. Outbound-only setups break those assumptions.
To detect drift in these networks, you need solutions that run from inside your resources toward the outside world. This involves lightweight agents or services that initiate calls to a central service, report the configuration state, and get comparison results back. APIs and telemetry streams are more secure when the traffic direction is always outbound, but the detection process must be built to work within those limits.