As organisations embrace Microsoft Copilot and AI, permissions management has become more important than ever. The challenge isn’t that Copilot creates new security risks—it simply shines a brighter light on the permissions, sharing links, and access decisions that already exist within your Microsoft 365 environment. In this first article of our governance series, I explore the roles of Site Owners and SharePoint Administrators, the risks of oversharing, and how tools such as SharePoint Advanced Management, Data Access Governance, Access Reviews, sharing controls, and sensitivity labels can help organisations prepare for the age of AI.