MC981567 – Power Platform – Upcoming enforcement of tenant isolation

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check before: 2025-03-01

Product:

Office 365 general

Platform:

Online, World tenant

Status:

Change type:

Links:

Details:

As part of our Secure by Default initiative, the tenant isolation feature will be enabled by default for all Power Platform tenants as the new default behavior. The enforcement is scheduled to begin the first week of March 24, 2025.

This feature applies only to Power Platform policies and is separate from guest access policies and Azure tenant restriction features.

Change Category:
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Scope:
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Release Phase:

Created:
2025-01-17

updated:
2025-01-17

Task Type

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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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summary for non-techies**

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Direct effects for Operations**

Disruption of Cross-Tenant Connections
The enforcement of tenant isolation will block all connection attempts between different tenants, potentially disrupting workflows that rely on cross-tenant data sharing or collaboration.
   - roles: Power Platform Administrator, Business Analyst
   - references: https://aka.ms/9426Link1, https://aka.ms/9426Link2

Increased Configuration Overhead
Organizations may face increased overhead in configuring policies to allow necessary cross-tenant connections, leading to delays in project timelines and resource allocation.
   - roles: IT Operations Manager, System Administrator
   - references: https://aka.ms/9426Link1, https://aka.ms/9426Link2

User Experience Degradation
Users may experience degraded performance or inability to access necessary resources if cross-tenant connections are unexpectedly blocked, impacting productivity.
   - roles: End User, Project Manager
   - references: https://aka.ms/9426Link1, https://aka.ms/9426Link2

Configutation Options**

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Opportunities**

Enhanced Security Posture
With the enforcement of tenant isolation, organizations can significantly improve their security posture by minimizing the risk of data leaks or unauthorized access from external tenants. This change promotes a more secure environment for sensitive data and operations within the Power Platform.
   - next-steps: Conduct a thorough audit of current cross-tenant connections to identify dependencies. Update security policies to reflect the new tenant isolation requirements and train staff on best practices for managing data access within the isolated environment.
   - roles: IT Security Manager, Compliance Officer, Data Governance Lead
   - references: https://techcommunity.microsoft.com/t5/power-apps-ideas/tenant-isolation-in-power-platform/idi-p/3687195, https://www.microsoft.com/en-us/security/blog/2023/09/12/secure-by-default-initiatives-in-the-cloud/

Streamlined Policy Management
The upcoming enforcement allows organizations to proactively set up policies for tenant isolation, which can streamline policy management processes. By configuring these policies in advance, organizations can avoid disruptions and ensure compliance with the new standards.
   - next-steps: Review existing policies related to cross-tenant connections and develop a strategy for implementing tenant isolation policies. Schedule training sessions for IT staff to familiarize them with the new policy management tools.
   - roles: IT Administrator, Policy Compliance Officer, Operations Manager
   - references: https://learn.microsoft.com/en-us/power-platform/admin/tenant-isolation" target="_blank" rel="nofollow noopener noreferrer">https://learn.microsoft.com/en-us/power-platform/admin/tenant-isolation, https://www.microsoft.com/en-us/security/blog/2023/09/12/secure-by-default-initiatives-in-the-cloud/

Improved User Experience
By ensuring that cross-tenant connections are properly managed or restricted, users within the organization can have a more stable and reliable experience when using Power Platform tools. This reduces the likelihood of connectivity issues and confusion related to cross-tenant interactions.
   - next-steps: Gather feedback from users regarding their current experiences with cross-tenant connections. Use this information to inform policy decisions and user training programs that emphasize best practices in the isolated environment.
   - roles: User Experience Designer, IT Support Specialist, Business Analyst
   - references: https://techcommunity.microsoft.com/t5/power-apps-ideas/tenant-isolation-in-power-platform/idi-p/3687195, https://learn.microsoft.com/en-us/power-platform/admin/tenant-isolation" target="_blank" rel="nofollow noopener noreferrer">https://learn.microsoft.com/en-us/power-platform/admin/tenant-isolation

Potentional Risks**

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IT Security**

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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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