Governance first, then Copilot

• SituationMulti-office professional services · Microsoft 365 already in production
• RiskOversharing and weak classification would surface confidential content in Copilot
• OutcomeControlled pilot, clearer permissions, rollout plan leadership could defend

The situation

Leadership had budget and interest in Microsoft 365 Copilot. Day-to-day collaboration lived in SharePoint, Teams, and Exchange. No one had recently audited who could see which libraries — or what sensitivity labels actually enforced.

Deploying Copilot on that baseline would not have “broken security.” It would have made existing oversharing easy to discover through natural language.

What we did

• Permission and sharing review on high-risk sites and Teams
• Remediation of open links, broken inheritance, and guest sprawl where it mattered
• Sensitivity label and DLP baseline appropriate to their licensing
• Conditional Access and identity hygiene check before pilot users were licensed
• Phased pilot with success criteria, feedback loop, and training — not a big-bang enablement

Results

The firm delayed broad Copilot licensing until the data plane was acceptable. Pilot users got value without becoming an accidental disclosure channel. Leadership received a written readiness picture: what was fixed, what remained, and when expansion made sense.

Client identity is withheld by agreement. The engagement pattern is one we repeat: governance first, then productivity AI.

Related

See our Artificial Intelligence practice, or contact us if you are evaluating Copilot, Cowork, or Foundry and want an honest readiness assessment.