Strategies for performing security migrations

A practical playbook for eliminating legacy AWS misconfigurations at scale—such as moving from IMDSv1 to IMDSv2 and replacing IAM user access keys with roles—by establishing metrics, segmenting use cases, building paved roads (documentation and IaC modules), engaging vendors and cloud providers, detecting issues via IaC and environment scans, and progressively enforcing preventions (SCPs and auto-remediation) to ratchet risk down without disrupting operations.