How to turn off China Mobile Security SMS?

China Mobile's secure SMS can be closed by sending SMS and calling the customer service hotline. It should be noted that the closure of security services by China Mobile may lead to some security problems. It is recommended to confirm that this service is no longer needed before closing. At the same time, after closing the service, you may receive a certain amount of liquidated damages or other service fees, and you need to know the relevant charging standards. In addition, closing the service may affect the use of safety-related equipment, which needs careful consideration. Closing China Mobile's security SMS can be achieved by sending SMS or calling the customer service hotline, but attention should be paid to the possible security risks and costs.