Credit cards can be used not only for transactions without cards, but also for transactions without cards and secrets (no password is required). It is precisely because of this that the cardholder is advised to protect the CVV code on the back of the credit card (commonly known as "the last three codes" or CV2).

No card and no secret transaction (also called offline transaction)

1. At present, companies such as Kuaiqian provide a service: no card and no secret transaction (also called offline transaction). Offline transactions are common in booking hotels, air tickets or other online payments. The cardholder only needs to provide the credit card account number, expiration date and its "last three codes" to complete the transaction, without providing the physical card and password.

2. Most of the stolen credit cards appear on POS machines provided by quick money companies. As long as it is used for purchasing (booking hotels and air tickets) through POS machines or websites provided by Kuaiqian Company, you don't need to enter a password.

3. "Credit card transaction": the cardholder swipes the card at POS terminals such as shopping malls and supermarkets with a credit card, signs the authorization, and then completes the transaction.

The correct use method is as follows:

Don't give the card to others, including reading it.

You can cut off a small piece of tape and stick it on the "last three yards".

Usually try to swipe your card at the counter to avoid leaving your sight.

At the same time, keep the credit card transaction receipt after consumption, and carefully compare the credit card transaction receipt with the monthly bill. If any abnormality is found, the bank shall be informed in time.