How do you block your co-workers from joining other external tenants as guests

HOW TO BLOCK USERS FROM BECOMING GUESTS IN AN EXTERNAL OFFICE 365 TENANT
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Without a doubt, Microsoft Teams is a key asset in corporate communications today. To improve collaboration, Microsoft provides the ability to add external users as guests in external tenants.
This increases productivity, but on the other hand can introduce new risks, especially if your users are guests of other tenants and are not bound by your company policy at this time.

The guest option is actually a corporate compliance and governance loophole that must be addressed.

The Problem

Scenario

An internal user (let's call him "employee") joins an external tenant (another company) as a guest.
The risks associated with this situation are enormous. For example, as described in this article, Microsoft DLP policies will not apply, which could mean data leakage without any precautions.
Another example is that a company might disable certain features in Teams for compliance reasons, such as file sharing. These policies will not apply when your users are guests of other tenants.

 

How to solve

SphereShield Ethical Wall for Microsoft Teams provides functionality as part of the Teams Governance/Ethical Wall feature. By setting up rules, administrators can block all or specific groups of employees from communicating with external tenants in any form.

Furthermore, it is possible to set unlimited rules to control the communication between users (or groups) and internal users, groups or external users (or domains).

SphereShield also provides the ability to prevent users from joining meetings anonymously

If you're wondering if SphereShield Ethical Wall is right for your business, contact us today for a free demo.

 

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Source: https://bit.ly/blog-220207-src

 

Copyright by AGAT Software, Yoav Crombie, Compliance & Security solutions for Unified Communications