Is the bank mobile phone short message useful?

The mobile phone number is used as verification information, so this prompt will appear. Because sometimes it is necessary to send some verification messages in a unified way. In order to be more secure, Alipay should confirm that the bank card and Alipay are the same person when binding. If you go to the bank to change the reserved mobile phone number or prompt this information, I will help you analyze the following points. 1. You should make sure that you have changed the reserved mobile phone number, not other bound mobile phone numbers of the bank card. 2. You should make sure that you have entered the bound mobile phone number correctly. You should make sure that this reserved mobile phone number will take effect immediately after modification, and don't delay. (If there is a delay, come back and continue binding as soon as you change it. At this time, the changed mobile phone number has not yet taken effect, so this prompt will appear. ).