In 2019, cyber enabled fraud encompassed nearly $2.3 billion US Dollars. The trends continue upward as criminals become more effective at email compromises, phishing and wire fraud. Enter cyber defense teams. In 2020, the Fifth Third Detect and Response team, in association with the Fraud and Cyber Threat Intelligence teams, identified an actor focused on commercial business fraud. This talk gives you a boots on the ground view of how the teams identified the actor, began tracking and ultimately built mitigations and protections against them to better protect the bank as well as our most critical asset: our customers.