Copilot did not create your oversharing problem — it just made it impossible to ignore. This article explains how Copilot interacts with SharePoint permissions, where oversharing actually comes from in most SMB tenants, and what to audit and fix before enabling Copilot for your organisation.

Microsoft 365 Business Premium security checklist for SMBs. Learn how to harden identity, Conditional Access, email, endpoints, and monitoring with a practical baseline approach.