This is more convenient, because credit cards are originally a product of foreign countries. China just learned from Handan. So far, there are still many imperfections, but efforts have been made. For example, foreign credit cards are all It requires password verification. You just rely on your personal signature to swipe the card for consumption. In China, you must set a password. This is also a protective measure.

For online transactions, enter your card number and validity period. , the CVV code can be used for transactions, which is convenient, so the card must be used by the person himself, and the card should not be seen by others, or after swiping the card in the mall, put it away quickly, and try not to let others see the card. In addition, if you are worried, you can activate the text message reminder service, which means that you will be sent a text message reminder for every purchase on your credit card, but it will be charged, 3 yuan/month. In this case, it is safer. If you receive a text message and find that it is not For your own consumption, you can call immediately to control the card or report the loss, because after all, you cannot have your cake and eat it too, and you can only find the right balance between convenience and security.