The cashier swiped the credit card. When using the credit card, he can use three aspects before swiping the card, while swiping the card and after swiping the card to prevent his security information from being leaked.

1. To prevent credit card security information from being leaked, pay attention before swiping the card.

The most important point is that when you do not use your credit card, you must properly keep your credit card and password. If you find that your credit card is lost or your password is leaked, you must promptly report the loss and replace the card. There are many people who post their credit cards. It is best to avoid this. If you must post your credit card number, you must block the credit card number or use software to blur it (mosaic). In principle, short-line services should be opened so that you can know the changes in the credit card amount at any time. The security code (CVV code) on the back of the card also needs to be carefully protected and not leaked.

2. To prevent credit card security information from being leaked, you must pay attention when swiping your card.

The most basic common sense is: when swiping a card, pay attention to the safety of the environment in which the card is used. It is best not to use it in high-risk places such as bars. No matter where you swipe your credit card, the credit card should not be out of sight, let alone handed over to the service staff to swipe the card elsewhere. When entering the password, you must cover it with your hands to avoid being seen by anyone with ulterior motives. When signing the order, you must carefully check the information and amount inside to ensure it is correct. These are all key points to prevent credit card security information from being leaked.

3. Prevent credit card security information from being leaked, and do not relax after swiping the card.

Many people think that once the credit card is used up, the problem is over. In fact, there are many things to pay attention to after swiping your card. For example, the documents must be kept properly and do not cut them randomly. If you have registered a credit card on a shopping website, remember to delete the relevant information, etc. These are also important steps to prevent credit card security information from being leaked.