check before: 2026-03-01
Product:
Copilot, Microsoft 365 Copilot, Microsoft Graph, Purview, Purview Communication Compliance, Purview Data Loss Prevention, SharePoint
Platform:
Developer, Online, Web, World tenant
Status:
In development
Change type:
New feature, User impact, Admin impact
Links:
Details:
Summary:
Microsoft Purview DLP will add real-time evaluation to block sensitive data in Microsoft 365 Copilot and Copilot Chat from external web searches. When blocked, Copilot uses internal Microsoft Graph data. Rollout begins late March 2026; admins must opt in by updating DLP policies in the Purview portal.
Details:
[Introduction]
We're expanding Microsoft Purview Data Loss Prevention (DLP) for Microsoft 365 Copilot and Copilot Chat to help organizations prevent sensitive data from being sent to external web search. This enhancement introduces real‑time DLP evaluation for prompts containing sensitive information types (SITs), ensuring Copilot and Microsoft 365‑published agents avoid using sensitive content for external web queries. When blocked, Copilot will still respond based on internal Microsoft Graph grounding if licensed.
This message is associated with Microsoft 365 Roadmap ID 548671.
[When this will happen]
Public Preview: Rollout begins in late March 2026 and completes in late April 2026.
General Availability (Worldwide): Rollout begins in late June 2026 and completes in late July 2026.
Change Category:
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Scope:
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Release Phase:
General Availability, Preview
Created:
2026-03-28
updated:
2026-03-28
Public Preview Start Date
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Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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Pictures
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summary for non-techies**
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Direct effects for Operations**
Data Leakage Risk
Without proper preparation, sensitive data may inadvertently be exposed during external web searches, leading to potential data breaches and compliance violations.
- roles: Data Security Admin, Compliance Officer
- references: https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide" target="_blank" rel="nofollow noopener noreferrer">https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=548671#Roadmap
User Experience Disruption
If DLP policies are not configured before the rollout, users may experience interruptions in their workflows as Copilot may block legitimate queries containing sensitive data, leading to frustration.
- roles: End User, IT Support Staff
- references: https://learn.microsoft.com/purview/dlp-create-deploy-policy#permissions, https://learn.microsoft.com/purview/dlp-microsoft365-copilot-location-learn-about
Increased Administrative Burden
Admins may face increased workload to configure and manage new DLP policies post-rollout, which could lead to delays in policy implementation and potential security gaps.
- roles: IT Admin, Data Security AI Admin
- references: https://learn.microsoft.com/purview/dlp-create-deploy-policy#permissions, https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide" target="_blank" rel="nofollow noopener noreferrer">https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide
Configutation Options**
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Opportunities**
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Potentional Risks**
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Data Protection**
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IT Security**
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Hypothetical Work Council Statement**
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DPIA Draft**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 2 weeks ago ago
