📖 What is Microsoft Purview Information Barrier?
Microsoft Purview Information Barrier is a compliance feature that prevents specific groups of users from communicating or collaborating with each other. It is primarily used in highly regulated industries, such as finance, to prevent conflicts of interest or the illegal sharing of inside information.
"Be aware that Information Barriers affect Teams, SharePoint, and Exchange communication, effectively creating isolated silos within the organization."
📚 Certification: Microsoft 365 Administrator (MS-102)
🔑 What are the Key Concepts of Microsoft Purview Information Barrier?
- ▸ User Segments are the foundational building blocks, grouping users based on attributes to define who is subject to specific communication restrictions.
- ▸ Communication Policies define the actual rules, specifying whether communication is allowed or blocked between two defined user segments.
- ▸ The feature provides cross-platform enforcement, affecting communication and collaboration within Microsoft Teams, SharePoint Online, and Exchange Online.
- ▸ Implementation is primarily used for regulatory compliance to prevent conflicts of interest, such as separating research and trading desks in finance.
- ▸ Configuration often requires the use of PowerShell for creating segments and applying policies before the barriers take effect across the tenant.
🎯 How does Microsoft Purview Information Barrier appear on the MS-102 Exam?
You may be asked to recommend a solution for a financial institution that must legally prevent the 'Investment Banking' group from communicating with the 'Research' group.
A scenario might describe a need to block specific departments from adding each other to Teams chats or sharing SharePoint sites while maintaining other collaborations.
Expect questions regarding the prerequisites for Information Barriers, specifically focusing on the requirement to create user segments before applying blocking policies.
❓ Frequently Asked Questions
How do Information Barriers differ from Sensitivity Labels?
Sensitivity labels protect the data itself through encryption and watermarking, whereas Information Barriers prevent specific people from interacting or collaborating regardless of the data's classification.
Do Information Barriers automatically remove users from existing Teams?
Information Barriers primarily prevent new collaborations. They do not automatically remove users from existing chats or groups, so administrators must perform a cleanup to ensure full compliance.
Can users override Information Barrier policies to communicate in emergencies?
No, Information Barriers are enforced at the service level by Microsoft 365. Users cannot manually bypass these restrictions to start chats or invite blocked segments to meetings.