Exam AB-900 Topic 1 Question 41 Discussion

Actual exam question for Microsoft's AB-900 exam
Question #: 41
Topic #: 1
A critical governance risk when implementing Microsoft 365 Copilot is the potential for oversharing of corporate data. The Chief Compliance Officer is concerned that, because Copilot uses all data a user can access, a user may inadvertently get access to sensitive information they should not have. What is the most common cause of this oversharing risk that administrators must address as a high-priority governance task before deploying Copilot widely?

Suggested Answer: B Vote an answer

The core risk (and a key administrative task before Copilot deployment) is that if a document has been accidentally or intentionally granted access to "Everyone" or "All Company" in SharePoint or OneDrive, every licensed Copilot user will have the potential to retrieve and summarize that data.
Since Copilot respects existing permissions, it will expose the broad access that was already present in the M365 environment, making the overly broad permission the root cause of the oversharing risk.
References:
https://learn.microsoft.com/en-us/answers/questions/5400129/please-explain-access- management-in-onedrive-share
https://learn.microsoft.com/en-us/copilot/microsoft-365/enterprise-data-protection
https://learn.microsoft.com/en-us/copilot/microsoft-365/microsoft-365-copilot-privacy
https://learn.microsoft.com/en-us/azure/cloud-adoption-framework/scenarios/ai/govern

by Ken at Aug 20, 2026, 11:16 AM

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