Athena Cost Kill Switch: Automated IAM Credential Revocation with CloudWatch, EventBridge, and Lambda

How to design an automated kill switch for an Athena data platform that disables service credentials within seconds of a scan threshold breach. What I Built This system provides an automated response to excessive AWS Athena scan costs generated by external services. It monitors Athena workgroup metrics and immediately revokes IAM access keys when pre-defined data processing thresholds are exceeded, preventing unmonitored cost spikes without requiring human intervention. System Architecture The a