1. What is a credit card verification code? The credit card verification code is the 3-digit number on the back of the card, and it is also a security code. On the back of every credit card, there are two sets of numbers in italics, usually at the top of the signature area. The first four digits are the last four digits of the card number. The last three digits are commonly known as the "last three digits". It is a verification code set up by commercial banks to ensure the security of credit card passwords, and is used for bank cards for indirect credit card consumption transactions. Generally speaking, only credit cards issued domestically may have passwords, while credit cards issued overseas do not have passwords. There is a method of using credit cards called "card-less payment", or "card-less payment without password". You only need to provide the card number and the three-digit verification code (CVV, also known as the "last three digits") on the back of the credit card. Complete payment. In addition, people’s awareness of the confidentiality of CVV ??codes is quite weak, giving criminals an opportunity to take advantage of them. Therefore, no matter how tightly protected credit cards and passwords are, they may still be stolen. Security tip: Guangfa Bank credit card is equipped with a "transaction switch" to ensure credit card security. 2. How to protect credit card verification code
1. When swiping the credit card without taking it out of sight, don't take the trouble to hand the credit card to the clerk for checkout to prevent People with "ulterior motives" take the opportunity to obtain relevant information on credit cards. It's best to keep credit cards out of sight.
2. Enable account change consumption text messages. Be sure to set a consumption amount SMS reminder for your credit card. You can know the changes in the amount in the card at the first time. If there is any abnormality, call the bank or the police immediately. In addition, users can also enable the online payment function for their credit cards only when they need to shop online, cancel the function after completing the transaction, and re-enable it the next time they need it.
3. Use tape to stick the last three digits. In this way, even if a "careful person" gets the credit card or gets the card number in a short time, he may not be able to succeed.
4. Pay attention to protecting personal information. In addition to passwords, credit card number, credit card validity period, credit card verification code CVN2 (the "last three digits") and ID number are also extremely important personal information, which can be used for air tickets. , business travel and hotel reservations and other remote non-face-to-face transactions, so do not disclose it easily.
5. Please be careful when making online payments. When making online payments, cardholders must make sure to conduct transactions on well-known company websites and third-party payment platforms with good reputation, and avoid using online banking on computers in public places. and leave personal information, and do not open any web pages. Don’t click on links to unknown websites and text messages, and be extra cautious when calling unknown people asking for money transfers or passwords.