Learn how WarnerMedia leveraged Amazon GuardDuty, AWS CloudTrail, and its own serverless inventory tool (Antiope) to root out cloud vulnerabilities, insecure behavior, and potential account compromise activities across a large number of accounts. We cover how WarnerMedia centralizes and automates its security tooling, offer detailed Splunk queries for GuardDuty and CloudTrail, and discuss how Antiope is used for vulnerability hunting. We cover the scaling issues incurred during a large enterprise merger. Leave this session with a strategy and an actionable set of detections for finding potential data breaches and account compromises.