In recent years, on the one hand, with the surge in the usage of bank cards, stealing bank cards and credit card fraud has become a quick way for some criminals to make money, causing cardholders to worry about the security of their bank cards. On the other hand, various commercial banks, in order to seize the credit card market, have adopted a sea-of-people strategy, issuing credit cards at all costs, providing many criminals with opportunities and also planting the seeds for an increase in delinquency rates. Identifying cash-out suspects in real-time, online shopping platforms not only meet the shopping needs of consumers but also give illegal individuals opportunities to conduct unauthorized cash-outs. A person working at a joint-stock bank and very familiar with the internet...