The security code of a credit card is usually on the back of the card. If you look carefully, you can easily find it. The three digits on the back of the Ping An Bank credit card are the CVV2 verification code, which is actually the security code.
In order to prevent the credit card from being blurred due to long-term wear and tear, it is recommended to keep the license plate after getting the credit card or write the credit card information in a notebook, which will be more convenient to use.
When you forget your security code, it is recommended to apply for a new credit card or call customer service to inquire. Customer service will give you relevant suggestions based on your specific situation.
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Credit card security code is a security code for credit cards when conducting online or telephone transactions. It is usually a 3 or 4-digit number printed on the credit card, and the location of the printing will vary on different types of cards. It is often used to prevent credit card fraud by verifying that the payer owned the credit card at the time of the transaction.
CVV password verification means that commercial banks add custom algorithm verification codes to the bank card number encoding rules and magnetic stripe data formats they use. The relevant bank cards are also called CVN bank cards.
CVV information is stored in the magnetic track of the magnetic stripe bank card. Based on the card number, track master account number, card-issuing bank logo code and other information, it is encrypted through a special encryption algorithm customized by each bank. Each step uses CVKA technology encrypts and gets the verification code.
Because the encryption algorithms of different banks are different, some counterfeit cards illegally produced using the obtained bank card information can be identified and cannot be used when the card issuer decrypts them.
Printing position
The security code of the VISA card is called CVV2 (Card Verification Value 2). It has 3 digits and is printed flat on the signature column on the back of the credit card at the last 4 digits of the card number. [3]
The security code of MasterCard is called CVC2 (Card Validation Code 2). It has 3 digits and is printed flat on the signature line on the back of the credit card at the last 4 digits of the card number.
The security code of the Discover Card is called Cardmember ID, which is a 3-digit number and is printed flat on the signature line on the back of the credit card.
The security code of American Express is called CID (Card Identification Number), which is a 4-digit number and is printed flat on the front of the credit card above the credit card number.
The security code of China UnionPay is called CVN2 (Card Validation Number 2). It has 3 digits and is printed flat on the signature line on the back of the credit card after the last 4 digits of the card number.
The security code of the JCB card (Japan Credit Bureau) is called CAV2 (Card Authentication Value 2). It has 3 digits and is printed flat on the signature line on the back of the credit card after the 4 digits of the card number.
The credit card security code is equivalent to the credit card’s ID card. We can use this code to conduct consumer transactions. Shopping on overseas websites does not require a password. As long as the buyer provides an account number and security code, the transaction can be completed. In China, there are also merchants that have signed contracts with banks to complete phone transfers without a credit card password and only with a security code.
So everyone must keep their credit cards safe and keep them out of their sight when making purchases to avoid others remembering your credit card account number and security code.