check before: 2025-06-01
Product:
Copilot, Microsoft 365 Copilot, Purview, Purview Communication Compliance, Purview compliance portal, Purview Data Loss Prevention, Purview Information Protection, SharePoint
Platform:
Online, Web, World tenant
Status:
Launched
Change type:
Admin impact, New feature, Updated message, User impact
Links:
Details:
Summary:
Microsoft Purview Data Loss Prevention will soon restrict Microsoft 365 Copilot from processing emails labeled with sensitivity starting January 1, 2025. The feature rolls out June to September 2025, requires no Copilot license, and allows admins to create or extend DLP policies via the Purview portal automatically.
Details:
Updated August 11, 2025: We have updated the timeline. Thank you for your patience.
Microsoft Purview Data Loss Prevention (DLP) will soon extend to preventing Microsoft 365 Copilot from processing emails with sensitivity labels. This feature will allow existing or new DLP policies to provide detection of sensitivity labels in emails as enterprise grounding data and restrict access of the labeled emails in Microsoft 365 Copilot chat experiences. This feature only works for emails sent on or after January 1, 2025.
The preview does not support alerts, audit records, and policy simulation.
A Microsoft 365 Copilot license is NOT required to access this feature.
This message is associated with Microsoft 365 Roadmap ID 489221.
[When this will happen:]
Public Preview: We will begin rolling out early June 2025 and expect to complete by late June 2025.
General Availability (Worldwide): We will begin rolling out late August 2025 (previously early August) and expect to complete by late September 2025 (previously late August).
Change Category:
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Scope:
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Release Phase:
General Availability, Preview
Created:
2025-06-06
updated:
2025-08-12
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**
Starting January 1, 2025, Microsoft Purview Data Loss Prevention will automatically prevent Microsoft 365 Copilot from processing emails labeled with sensitivity tags, ensuring sensitive information is not inadvertently shared, with rollout occurring between June and September 2025 for all Microsoft 365 organizations.
Direct effects for Operations**
Restriction of Email Processing
Microsoft 365 Copilot will be restricted from processing emails labeled with sensitivity, potentially leading to delays in user access to important information and reduced productivity.
- roles: End Users, Compliance Officers
- references: https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide, https://learn.microsoft.com/purview/dlp-microsoft365-copilot-location-learn-about
Lack of Alerts and Audit Records
The new DLP feature does not support alerts or audit records, which may hinder the ability to track compliance and data loss incidents effectively, impacting security oversight.
- roles: IT Security Managers, Compliance Officers
- references: https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=489221
User Notification and Documentation Updates
Without prior notification, users may be unaware of the changes, leading to confusion and potential misuse of the Copilot tool, affecting user experience and trust in IT systems.
- roles: End Users, IT Support Staff
- references: https://learn.microsoft.com/purview/dlp-learn-about-dlp?view=o365-worldwide, https://learn.microsoft.com/purview/dlp-microsoft365-copilot-location-learn-about
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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change history
| Date | Property | old | new |
| 2025-08-12 | MC Last Updated | 06/06/2025 01:44:24 | 2025-08-11T22:51:36Z |
| 2025-08-12 | MC Messages | Microsoft Purview Data Loss Prevention (DLP) will soon extend to preventing Microsoft 365 Copilot from processing emails with sensitivity labels. This feature will allow existing or new DLP policies to provide detection of sensitivity labels in emails as enterprise grounding data and restrict access of the labeled emails in Microsoft 365 Copilot chat experiences. This feature only works for emails sent on or after January 1, 2025.
The preview does not support alerts, audit records, and policy simulation. A Microsoft 365 Copilot license is NOT required to access this feature. This message is associated with Microsoft 365 Roadmap ID 489221. [When this will happen:] Public Preview: We will begin rolling out early June 2025 and expect to complete by late June 2025. General Availability (Worldwide): We will begin rolling out early August 2025 and expect to complete by late August 2025. | Updated August 11, 2025: We have updated the timeline. Thank you for your patience.
Microsoft Purview Data Loss Prevention (DLP) will soon extend to preventing Microsoft 365 Copilot from processing emails with sensitivity labels. This feature will allow existing or new DLP policies to provide detection of sensitivity labels in emails as enterprise grounding data and restrict access of the labeled emails in Microsoft 365 Copilot chat experiences. This feature only works for emails sent on or after January 1, 2025. The preview does not support alerts, audit records, and policy simulation. A Microsoft 365 Copilot license is NOT required to access this feature. This message is associated with Microsoft 365 Roadmap ID 489221. [When this will happen:] Public Preview: We will begin rolling out early June 2025 and expect to complete by late June 2025. General Availability (Worldwide): We will begin rolling out late August 2025 (previously early August) and expect to complete by late September 2025 (previously late August). |
| 2025-08-12 | MC Summary | Microsoft Purview Data Loss Prevention will soon prevent Microsoft 365 Copilot from processing emails with sensitivity labels, effective for emails sent on or after January 1, 2025. The public preview starts in June 2025, with general availability in August 2025. No admin action is required before the rollout. | Microsoft Purview Data Loss Prevention will soon restrict Microsoft 365 Copilot from processing emails labeled with sensitivity starting January 1, 2025. The feature rolls out June to September 2025, requires no Copilot license, and allows admins to create or extend DLP policies via the Purview portal automatically. |
| 2025-08-12 | MC MessageTagNames | New feature, User impact, Admin impact | Updated message, New feature, User impact, Admin impact |
| 2025-08-12 | MC End Time | 09/26/2025 09:00:00 | 2025-11-10T08:00:00Z |
Last updated 4 weeks ago ago
