Banks need a mobile phone real-name registration system to verify what messages to send.

Banks need to reserve their mobile phone numbers when handling business, just for the convenience of inquiring and contacting bank information when handling business. As for whether the handler's own mobile phone real name number should not be strictly stipulated, it is generally only necessary to ask for his own mobile phone number to facilitate contact.

At the same time, the mobile phone number is also the notification number of account information change. If the mobile phone number is not your own, you may not be able to know the changes in the funds in the account in time, especially when the funds change abnormally, and you cannot take timely measures to stop the loss.

Mobile phone number is also a means to verify the operation of some banks, such as online banking. Some operations require verification codes, which need to be sent by mobile phone number.