What is a credit card security code?
The credit card security code is the security code used by credit cards for online or telephone transactions. It is usually a 3-digit or 4-digit number printed on a credit card. The printing position will be different for different types of cards. It is often used to prevent credit card fraud by proving that the payer owned the credit card at the time of the transaction.
Credit card security codes have different names in different card organizations, for example:
The security code of UnionPay cards (China UnionPay) is called CVN2 (Card Verification Number 2), which has three digits The number is printed on the back of the credit card in the signature line after the last four digits of the card number.
VISA's security code is called CVV2 (Card Verification Value 2), which is a 3-digit number printed on the signature field on the back of the credit card and is the last 4 digits of the card number.
MarsterCard’s security code is called CVC2 (Card Verification Code 2), which is a 3-digit number printed on the last 4 digits on the back of the credit card.
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American Express's security code is called CID (Card Identification Number), which has four digits and is printed on the credit card number. front.
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The security code of the JCB card (Japan Credit Bureau) is called CAV2 (Card Authentication Value 2), which has 3 digits , printed on the last 4 digits of the signature line on the back of the credit card.
What is the use of credit card security code?
In the early years, credit card security codes were mainly used for overseas website purchases. You do not need to provide a password when shopping on overseas websites. You only need to provide your credit card number, expiration date and security code to complete the transaction. In recent years, some merchants in China have begun to use security codes instead of passwords for payment, such as JD.COM's online payment. Most flight and hotel bookings are also transacted via security codes. In addition, some banks also require credit card security codes for online banking transactions.
How to protect credit card security code?
Leaking your credit card security code is equivalent to giving away your password. Once the card reader knows the card number and security code, it can swipe a credit card thousands of miles away without having to steal the card. So, how to prevent your credit card security code from being leaked?
First of all, when you swipe your card outside, be careful not to let others see the security code of your credit card easily. If you are afraid that the security code will be leaked, you can use tape to block the security code. Secondly, if you use a credit card security code for online shopping, remember to clear the credit card information automatically saved by the website. Target, a large American retailer, and Ctrip, a Chinese company, have both experienced leaks of user bank card information. Finally, once you find that your credit card security code is at risk of being leaked, you can actively contact the card issuer to change the card to avoid losses.
img src=' /large/1239/7887933526 '/Related Q&A: Related Q&A: I lost my credit card, how do I check the security code?
What is the security code for a credit card?
It is the 7-digit (or 8-digit) bold number on the credit card. The first four digits are the last digit of the bank card number, and the three digits after the space are the security code (usually in italic font).
Where is the credit card security code?
The security codes of cards issued by these four major card organizations, UnionPay, JCB, MasterCard, and VISA, are printed on the last three digits on the signature line on the back of the credit card, usually in italics; American Express card security code It is the 4-digit number printed on the front of the card, above the card number.
What is the use of the credit card security code?
The security code is the "second ID card" of the credit card. When performing off-site transactions (such as online and telephone), the cardholder does not need a password and only needs to provide the card number, validity period, and security code to complete the transaction. trade.
If I lose my security code, can I call the bank customer service to get it back?
Only the cardholder knows the credit card security code. Others, including the bank, usually do not know it, so it is generally not possible to find it by calling the bank's customer service number.
What should I do if the security code is blurry?
If the security code is blurred and indistinguishable due to improper use or other reasons, you can cover it with a thin piece of white paper and slowly smear it on the corresponding position, and it will usually be visible. If it is painted in such a way that it cannot be displayed.
Then you can only apply to the card issuing bank to change the card, cancel the original card and apply for a new card. The security code of the new card will be the same as the original one.
Finally, a reminder that the security code is almost as important as the password, so keep it confidential in daily use.