You can't govern what you can't see. Discovery isn't just important—it's the first and most essential building block of identity hygiene. In this chapter, you'll learn why comprehensive discovery and accurate inventory management are foundational to effectively governing AI identities. Without visibility into where and how AI-driven identities are operating, you can't manage risk, ownership, or accountability effectively. This chapter outlines the practical steps necessary to ensure continuous discovery, accurate inventories, and effective oversight of AI identities across your organization.