Abstract: A computing resource service receives a request to perform a change to a configuration of a service provider account. In response to the request, the computing resource service determines if the service provider account has been designated as being immutable. If the service provider account is designated as being immutable, the computing resource service causes an account security service to transmit a notification to administrators of the service provider account to determine whether the administrators authorize the change to the service provider account. If the administrators approve of the requested change, the computing resource service fulfills the request.