Notification of the opening of postal currency card by SMS. Do you want to change the number? Is there any risk?

If the mobile phone number you use has changed, you can go to the bank counter to go through the procedures for changing the mobile phone number sent by the account change SMS reminder service. As long as it's all your mobile phone number, it's fine. It is not a good thing for the bank to send the relevant information in your account to someone else's mobile phone, no matter what it is.