The mobile phone suddenly received the verification code of China UnionPay.

What you want to ask is why the mobile phone suddenly received the verification code of China UnionPay? When applying for verification code service, the bank opens by default and handles banking business. Others try to bind and enter the wrong mobile phone number.

1. Apply for verification code service: If you applied for verification code service of China UnionPay before, it is normal to receive verification code. You can set your own verification code according to the prompts and use it in future online banking operations.

2. Banks are opened by default: some banks will open the verification code service of China UnionPay by default when customers apply for bank cards. If you don't want to use this service, you can log in to online banking or call the bank's customer service phone to cancel the service.

3. Handling banking business: When handling payment business such as mobile phone recharge, the banking system will send a verification code to the phone number reserved by the customer, so as to verify whether the business is handled by the customer himself. Only by entering the verification code correctly can the business be handled smoothly.

4. Others try to bind: If someone tries to bind your bank card with a third-party personal account, during the binding process, the system will automatically issue a reserved phone verification code bound with the bank card to inform you that someone may try to bind your bank card.

5. Enter the wrong mobile phone number: Sometimes, participants enter the wrong mobile phone number. If it happens to be the same as yours, you may receive a verification code.

If you don't take the initiative to apply or do the above operations, but suddenly receive the verification code of China UnionPay, it is suggested to be vigilant and contact the customer service of China UnionPay immediately (for example, call 955 16) for consultation to confirm whether there is any abnormality or security risk. At the same time, you can also check whether the mobile phone has abnormal operation to ensure the safety of personal information.