What is the credit card verification code? How to protect credit card verification code

Do you know what the credit card verification code is? Credit card verification is also a credit card security code. Do you know that?/You know what? Do you know how to protect your credit card? Has your credit card verification code been leaked? How to protect the security department of credit card verification code?

Related credit card consumption can be used without password verification code and signature?

1. What is the credit card verification code?

The credit card verification code is a 3-digit number on the back of the card, which is also a security code.

On the back of each credit card, two sets of numbers are usually displayed in italics at the top of the signature. 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 by commercial banks to ensure the security of credit card passwords, and it is used for indirect credit card consumption transactions for bank cards. Generally speaking, domestic credit cards may have passwords, while foreign credit cards do not.

One way to use a credit card is called "no card payment" or "no card and no secret payment". You only need to provide the card number on the back of the credit card and the three-digit verification code (CVV) to complete the payment. In addition, people's awareness of the confidentiality of CVV codes is quite weak, which gives criminals an opportunity, so even if credit cards and passwords are tightly protected, they may be stolen.

There are security measures. The credit card of Guangfa Bank has a "transaction switch" to ensure the security of the credit card. Second, how to protect the credit card verification code?

1. Watch your credit card.

When you swipe your card outside, don't bother to hand it over to the clerk to settle the bill, so as to avoid people with ulterior motives taking the opportunity to obtain the relevant information of the credit card. It's best not to put your credit card out of sight.

2. Open an account and change the consumption SMS.

Be sure to set a SMS reminder for your credit card so that you can know the change of the amount in the card at the first time, and call the bank or the police immediately if there is any abnormality. In addition, users can also open the online payment function of credit card when they need to shop online, cancel the function after completing the transaction, and reopen it when they need it next time.

3. Seal the last three yards with tape.

In this way, even if a "willing heart" gets a credit card or aims at the card number in a short time, it may not be successful.

4. Pay attention to protecting personal information.

In addition to the password, credit card number, credit card expiration date, credit card use verification code CVN2 (the last three codes) and ID number are also extremely important personal information, which can be used for remote non-face-to-face transactions such as air tickets, business trips and hotel reservations. Don't disclose them easily.

5. Pay carefully online.

When making online payment, cardholders should ensure that transactions are made on the websites of well-known companies and reputable third-party payment platforms, avoid using online banking in public places and leaving personal information on computers, and do not open any web pages. Don't click on links and text messages from unknown websites, and be extra careful when you ask for a transfer or password by unknown phone.