Information
Require administrators or appropriately delegated users to create new tenants.
Rationale:
It is recommended to only allow an administrator to create new tenants. This prevent users from creating new Azure AD or Azure AD B2C tenants and ensures that only authorized users are able to do so.
Impact:
Enforcing this setting will ensure that only authorized users are able to create new tenants.
NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.
Solution
From Azure Portal
From Azure Home select the Portal Menu
Select Azure Active Directory
Select Users
Select User settings
Set Users can create Azure AD Tenants to No