Cloud Custodian is an open source cloud security, governance, and management tool with powerful integrations with AWS cloud services that allows for quick response times to address a wide array of compliance, governance, and security issues. As public cloud adoption increases across industries, the need to be able to properly secure and govern cloud resources is more important than ever. This session will show how to react quickly to changing security and compliance standards in reaction to security bulletins published by public cloud providers in a serverless and event based process.