Control: 2.3 Ensure that 'Restrict non-admin users from creating tenants' is set to 'Yes'

Description

Require administrators or appropriately delegated users to create new tenants.

It is recommended to only allow an administrator to create new tenants. This prevent users from creating new Microsoft Entra ID or Azure AD B2C tenants and ensures that only authorized users are able to do so.

Remediation

From Azure Portal

1. From Azure Home select the Portal Menu.
2. Select Microsoft Entra ID.
3. Under Manage, select Users.
4. Under Manage, select User settings.
5. Set Restrict non-admin users from creating tenants to Yes.
6. Click Save.

From PowerShell

Import-Module Microsoft.Graph.Identity.SignIns

Connect-MgGraph -Scopes 'Policy.ReadWrite.Authorization'

Select-MgProfile -Name beta

$params = @{
  DefaultUserRolePermissions = @{
    AllowedToCreateTenants = $false
  }
}

Update-MgPolicyAuthorizationPolicy -AuthorizationPolicyId -BodyParameter $params