Before you deploy Copilot, your Microsoft 365 tenant needs to be in a defensible state. Loose permissions, unclassified data, and weak baseline security mean Copilot will surface things it shouldn’t — confidently and at scale.

This series walks through the four things every business should sort out before rolling out Microsoft 365 Copilot: tenant security, permissions hygiene, data classification, and the final pre-Copilot readiness checklist.