Credit card companies will actually require merchants to verify the identity of the cardholder based on different customer situations.

Or you may notice that merchants that accept credit cards can use different methods to charge credit cards.

The most traditional old way is to put the card on a heavy plane, put a slip under it, fill in the debit code, and then "turn over": put the credit card Pressed on the slip and finally signed by the customer. This practice has been rarely used in recent years. The reason is that this method does not actually verify the authenticity of the card. Counterfeit cards and cards that have been reported lost can also be used. The only thing that can be verified is the signature, but the signature is unreliable. Therefore, it will only be used in places with few silver codes and low transaction volume, or where there is no phone.

The most common way is to use a credit card machine to pay the card. During the card process, the number on the credit card will be transmitted to the credit card center, so you can instantly know whether the card has been reported as lost, the remaining credit limit, etc. But it still cannot eliminate counterfeit cards. Because the information on the credit card tape is actually very easy to copy. Moreover, credit card company processing centers usually do not have all the credit card information around the world. If the card is overseas, the results may not be available immediately. Usually high-risk merchants (such as jewelry, electrical appliances) will ask to see ID cards or passports. A signature is required in most cases. However, there are also transactions where the risk of counterfeit cards is low (the amount of each transaction is low, but the number of transactions is large, such as fast food restaurants) that does not require a signature.

As for the Internet, since it is impossible to see the physical card and the shopper, the risk of using fake cards or other people's credit cards is the greatest. Usually in addition to the card number and expiration date, merchants also need a set of three digits printed on the card. This number is not on the tape on the card, so it is difficult to copy. But this is still not enough. Therefore, some online merchants will require cardholders to provide their address; or they will only deliver products to the address on the cardholder's bank record.

The credit card password is used for cash withdrawals. No password is required for normal credit card use.

2007-01-31 15:24:39 Supplement:

The method a merchant uses to verify the identity of the card owner will affect the fees the bank charges him. For example, banks charge the highest fees to Internet merchants due to their high risks. If a merchant frequently accepts counterfeit cards, not only may it fail to collect money, but it may also increase costs due to higher bank charges. , 09-86-377-776, a dedicated person will answer the questions on the phone, provide you with the latest bank loan solutions from various banks, and serve you with heart to "loan" you to solve any debt problems/

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Push... push... push, credit card information includes what is visible to the naked eye, credit card number, expiration date, credit card holder's name, membership year, signature and even some unknown numbers. What is invisible to the naked eye include passwords, personal information, etc.

In the past, general purchases only required swiping the card (with embossed card data) and signing. Now, it is not necessary to swipe the card. Merchants can also obtain card data through tape. The signature on the back of the card is designed to facilitate merchants to verify the signature. In fact, there is a risk of signing the card. Some people may deliberately sign incorrectly or falsely out of fear of giving false signatures to someone who finds them.

For online credit card purchases, the credit card number, expiration date and cardholder name are usually required. In some cases, even the expiration date is not required.

You can also refer to the "Verified by Visa" service, specially designed for online shopping (visa-asia/apzh_HK/cardholders/security/vbv.s)

In fact, the credit card password is Used to withdraw money or transfer funds.

For merchants, the only feasible way to ensure that the cardholder is the real cardholder is to check with the name on the ID card. ,