1. Double-label card: You need to have both the debit card of China UnionPay and the credit card of Visa to serve as important information such as card number, security code and issuing bank. , the information security of cardholders is low.

2. Use alone: As long as you have a debit card from China UnionPay or a credit card from Visa, you can complete the payment and protect the cardholder's personal data.