IaC with Terraform and Pulumi speeds provisioning but risks misconfigs. Pre-commit hooks via tfsec scan plans early. OPA Rego policies validate drifts in GitOps flows. Atlantis automates PR approvals with security gates. Integrate Checkov for multi-provider audits. Runtime drift detection via Driftctl ensures compliance. Secret scanning with TruffleHog prevents leaks. This shift-left approach aligns with DevSecOps, reducing blast radius in hybrid clouds.