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Require verification checks to join Teams meetings and webinars in your org

  • Article
  • Applies to:
    Microsoft Teams

APPLIES TO: Image of a checkmark for yes Meetings Image of a checkmark for yes Webinars Image of a x for noTown halls

For a seamless experience, it's important to manage how anonymous participants join meetings and webinars in your org. Anonymous participants include users who join a Teams meeting without signing in, via the Teams web app, or through external meeting platforms.

If your organizers allow anonymous users to bypass the lobby, web bots might join and disrupt their meetings and webinars. As an admin, you can require human verification checks for anonymous users to join meetings in your org. Requiring a CAPTCHA challenge can prevent unwanted web-based bots from joining, recording, and causing disturbances in meetings and webinars.

Screenshot of a user named Daniela completing an audio CAPTCHA challenge to join a meeting. Screenshot of a user named Daniela completing a text CAPTCHA challenge to join a meeting.

Manage verification checks for meetings and webinars in your org

You can use the Teams admin center or PowerShell manage verification checks for meetings and webinars in your org. You could also use a sensitivity label in Purview or a meeting template to require verification checks. To use meeting templates and sensitivity labels, you must have a Teams Premium license.

Teams admins center policy value PowerShell setting value Behavior
Not required NotRequired This is the default value. When organizers with this policy create meetings and webinars, no users in that meeting complete a verification check before joining the meeting.
Anonymous users and people from untrusted organizations AnonymousUsersAndUntrustedOrganizations When organizers with this policy create meetings and webinars, anonymous users and people from untrusted organizations must complete a verification check before joining the meeting.

Manage verification checks in the Teams admin center

  1. Open the Teams admin center.
  2. Expand Meetings from the navigation pane.
  3. Under Meetings, select Meeting Policies.
  4. Either select an existing policy or create a new one.
  5. Navigate to the Meeting join & lobby section and select one of the following options for Require a verification check from:
    • Not required (default)
    • Anonymous users and people from untrusted organizations
  6. Select Save

Manage verification checks using PowerShell

To manage how users in your org use Copilot for Teams meetings and events, use the -CaptchaVerificationForMeetingJoin parameter within the PowerShell CsTeamsMeetingPolicy cmdlet.

Require anonymous users and users from untrusted organizations to complete a verification check before joining meetings and webinars created by organizers with this policy:

Set-CsTeamsMeetingPolicy -Identity <policy name> -CaptchaVerificationForMeetingJoin AnonymousUsersAndUntrustedOrganizations

Prevent users from completing a verification check before joining meetings and webinars created by organizers with this policy:

Set-CsTeamsMeetingPolicy -Identity <policy name> -CaptchaVerificationForMeetingJoin NotRequired

Client and platform support

Supported

Verification checks are supported on the following clients and platforms:

Clients: Teams (T2.1, T2.2), Outlook

Platforms: Desktop, Web, Virtualized Desktop Infrastructure (VDI), and mobile application (iOS and Android)

Not supported

When participants from the following clients and platforms attend meetings that require a verification check, they join without completing the CAPTCHA challenge:

Clients: Cloud Video Interop (CVI), Azure Communication Services (ACS) platform, MTR Android devices

Platforms: Third party devices