Microsoft’s guidance for Microsoft 365 Copilot is clear: before you enable Copilot at scale, you must understand, validate, and remediate sensitive data and oversharing risks. In reality, many organizations first face a more basic challenge: knowing which data should still be available at all. This session delivers a pragmatic, end-to-end roadmap to Microsoft 365 Copilot readiness for both technical professionals and information management specialists. We will walk through a structured approach to identifying Copilot-exposed data, aligning actions with the capabilities available across different Microsoft 365 license SKUs. A key focus will be distinguishing active, business-relevant content from stale, redundant, or obsolete data—and ensuring only the right data remains available for prompting. You will learn how to gain actionable insights using Microsoft-native capabilities such as SharePoint Advanced Management and Microsoft Purview, alongside third-party solutions including AvePoint Insights for Microsoft 365 and Opus. We will demonstrate how these tools help uncover oversharing, sensitive data exposure, and aging content, and how archiving strategies can reduce both Copilot risk and operational noise without deleting records that must be retained. Beyond visibility, the session emphasizes execution. We will cover foundational service configurations, governance controls, and practical remediation techniques—including access correction, sensitivity labeling, and archiving stale data—to establish a secure and sustainable Copilot data surface. This fast-paced, real-world session cuts through theory and delivers concrete guidance you can apply immediately. You will leave with a clear understanding of the decisions, tools, and controls required to move from data sprawl to Copilot confidence—so you can responsibly and securely unleash Copilot across your organization.