558437 – Microsoft Purview: Data Loss Prevention– Unmanaged cloud app discovery and protection with Microsoft Purview and the Island Enterprise Browser

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check before: 2026-06-01

Product:

Purview, Purview Communication Compliance, Purview Data Loss Prevention, Purview Information Protection, Purview Insider Risk Management, SharePoint

Platform:

Web, World tenant

Status:

In development

Change type:

Links:

Details:

Microsoft Purview network data security now integrates with Island, extending protection to Island’s browser-based workflows at the point of user interaction. With this integration, new and existing Island customers can configure Microsoft Purview collection and data loss prevention policies to detect and protect data shared with unmanaged cloud apps through the Island Enterprise Browser, the Island Extension, and browser add ins via HTTP and HTTPS, using the same classifiers, sensitive information types, and sensitivity labels used in other Purview policies. Island provides visibility and control at the presentation layer, including typed and pasted input, file transfers, and extension activity, so data can be inspected before it ever leaves the browser. This integration further enriches Purview Data Security Posture Management (DSPM), Insider Risk Management (IRM) risk score, enables data security and compliance for AI interactions, and more.

Change Category:
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Scope:
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Release Phase:
General Availability, Preview

Created:
2026-03-11

updated:
2026-03-11

Public Preview Start Date

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Docu to Check

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MS workload name

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summary for non-techies**

Microsoft Purview has integrated with Island to extend its security measures, ensuring that data shared through Island's platform is protected by setting up rules and policies to manage access and compliance, similar to monitoring who can enter specific rooms in a secure building.

Direct effects for Operations**

Data Loss Prevention Policy Misconfiguration
Without proper preparation, the integration may lead to misconfigured data loss prevention policies, resulting in either excessive data exposure or unnecessary blocking of legitimate user activities.
   - roles: IT Security Manager, Compliance Officer
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/microsoft-purview-data-loss-prevention/ba-p/3651230

User Experience Disruption
Users may experience disruptions in their workflows due to unexpected blocking of data transfers or interactions with unmanaged cloud apps, leading to frustration and decreased productivity.
   - roles: End User, IT Support Specialist
   - references: https://www.microsoft.com/en-us/security/blog/2023/01/10/understanding-data-loss-prevention-in-microsoft-purview/

Increased Risk of Data Breaches
If the integration is implemented without adequate training and awareness, users may inadvertently expose sensitive data, increasing the risk of data breaches and compliance violations.
   - roles: Data Protection Officer, IT Security Analyst
   - references: https://www.microsoft.com/en-us/security/blog/2023/02/15/mitigating-data-breach-risks-with-microsoft-purview/

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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