The credit card number, plus the credit card validity period, are double-checked. This is the risk of credit cards. Nowadays, various domestic banks are controlling credit card limits and tightening credit card lending conditions. This factor is also considered. Therefore, when applying for a credit card, it will not go through the bank's operating agency, but directly to the credit card department of each bank's headquarters with a password. It is issued in the form of an envelope and then needs to be activated to avoid the risk of credit card account leakage, but the risk is still very large. Not to mention real credit cards, many Taiwanese people first made fake credit cards in Japan and then used gold in stores. No, many people in the United States still use fake credit cards to refuel their cars. Every year, banks lose a lot of money, so when using a credit card, you must keep the card carefully. If you swipe the card, don't let the card out of your sight, because it will be stolen. A duplicator that takes credit card information can copy the information of a card in less than a second, and then use the information to make a card with the same information, and the cost is less than one yuan. This has been said in the past and a case was solved today. Introduction This crime of stealing credit card information and then withdrawing cash from an ATM is available for reference.