MS Teams Block People

deepakjee 

From the Microsoft message center 

M365 Admin

Microsoft Teams: Block a user for your organization

This blog post was originally posted by Microsoft in the Microsoft 365 message center.

Microsoft Teams is introducing a block user feature to prevent malicious users from contacting an organization again. This feature, associated with Microsoft 365 Roadmap ID 411138, will be available worldwide in early November 2024. Admins can block users, preventing 1:1 and group chats with them. It’s off by default and can be enabled in external access settings.

Updated September 13, 2024: We have updated the rollout timeline below. Thank you for your patience.

The availability of the delete API (removeallaccessforuser API) does not stop a malicious user from resending a Microsoft Teams message to the same victim. To help prevent that, a block user feature will allow the admin to block the malicious user from reaching out again. To make this possible, we will use a similar feature as the allow/block list in federation identity credentials to block the malicious user from the entire organization.   

This message is associated with Microsoft 365 Roadmap ID 411138.

When this will happen:

General Availability (Worldwide): We will begin rolling out early November 2024 (previously late October) and expect to complete by mid-November 2024 (previously early November).

How this will affect your organization:

Admins can now set up a list of users that are blocked from collaborating with their organization. If a user is added to the block list, your organization will not be able to have 1:1 and group chats with these users. If chats already exist before a user is added to the block list, the blocked user will be removed from the chat.

This feature is turned off by default. 

What you need to do to prepare:

If you wish to use this feature, navigate to external access organization settings to turn this feature on and add users to the block list.

Message ID: MC888879

Hello deepakjee,

In Microsoft Teams, you can block individuals outside your organization.

When you block someone, they cannot communicate with you in Teams, and they cannot see your status.

Here’s how you can block someone in Teams:

1. In the Chat list: Point to the person’s name and select More Options > Block.
2. In their Profile Card: Point to the person’s profile picture to open their Profile Card, then select More Options > Contact block.

To unblock someone, you can do so from the chat list, their profile card, or from the settings under Privacy.

Block or unblock people outside your org in Microsoft Teams - Microsoft Support