POS card payment has become more and more common now, but it has brought us great convenience. At the same time, we must pay attention to and prevent the security of POS machine. Here we will share with you the POS card security strategy:
1. Do not brush integers and close to integers, such as 50000, 20000, 49999, 19999.99, etc., which is more likely to cause UnionPay's order, which is not good for customers' credit cards. The correct credit card amount should be 19850, 36840 to brush, and some also like a card to divide a few small brush, such as 1500, 2500, 2000 even brush, this is not acceptable.
2. The monthly brush of the POS machine can't exceed 3 million. Although some POS machines can brush 100,000 on a single pen, the daily brush is unlimited, but it is not called to brush hundreds of thousands every day. You can't put all the cards because the rate is low. They are all used on a machine to brush, so that the bank computer control system alarm will be red, when UnionPay will first check those machines with a large amount of cards, if it is a normal business, then naturally no problem, but if not, then You are going to spread things up. The best thing is that a machine is controlled at about 1 million. If you don't have enough brush, you can apply for a few.
3. Swipe card ratio problem, it is best to use credit card and debit card to match, 8 credit cards with 2 debit cards, POS machine legal person can not use their own debit card to brush, it is best to borrow a friend The amount of money can be. If you have been swiping your credit card from start to finish, then unfortunate things will happen. UnionPay will check your card records and find that suspicious will stop settlement until the problem is solved.
4. It is best to sign the small ticket, do not sign it, in case the order is made, the handwriting on the small ticket is found by the same person. Even if you have a normal business, he will think that you are helping others to cash out. Small tickets are best kept for more than half a year.
5. The most important point is that due to various reasons, the card fails. If you have such a problem, after you have brushed it twice, you should not brush it again if the transaction fails. Otherwise, the system will recognize that you are cashing in. When the problem occurs. At the time, the cardholder should call the appropriate issuing bank to ask why the card cannot be swiped, and then brush.
Attached: POS machine card precautions
1. Check whether the small ticket and bank card signature, card number, and card opening information are consistent, and the signature must be clear. Avoid brushing fake cards and fake cards, causing unnecessary losses.
2. The small ticket is reserved for at least two years. The small ticket is the only transaction voucher for the credit card machine, and it is required to be protected from light, moisture or photo.
3. The number of failed transactions on the same card in the same card should not exceed 3 times. Avoid causing financial freezes.
4. The number of inquiries for the same card in the same card machine should not exceed 3 times. Avoid causing financial freezes.
5. Avoid trading after 10pm. Avoid causing financial freezes. (Special industries need to provide real data report)
6. It is forbidden to bring the POS machine out of other provinces, otherwise it will be recovered by UnionPay and the terminal will be closed.
7. Large transactions need to be cautious! (Special industries need to provide real data report, avoid the reorganization of UnionPay into recovery, and cardholders refuse to pay) For the sake of financial security, you need to retain the customer's ID card, bank card, payment certificate and contact information.
8. When there is no small ticket when you swipe your card, you need to keep your ID card, bank card, payment certificate and contact information. If you have not received the account the next day, you need to contact the cardholder.
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