Friend sky6517so recounted: On February 3rd, 6000 yuan disappeared from my credit card. After contacting the customer service department, I was informed that as long as the cardholder provides the bank card number and the three digits on the back, personal information could be verified to make a purchase - without needing the physical card or a password! Sky6517so described this as a "shocking payment loophole". VISA, known in Chinese as 'Wei Shi', is a credit card organization originating from the U.S., and it's currently also the largest international credit card organization, owning 65% of the global market. Credit cards are a type of financial tool that originated in the U.S...