The three numbers on the back of the credit card are the CVV2 code, which is as important as the credit card password, but it is easily overlooked. You must be vigilant and do not leak the number easily.

This type of fraud often informs the victim in the name of bank customer service that the credit limit can be increased. After obtaining consent, the victim will be asked to provide the credit card number, expiration date and three-digit CVV2 code on the back of the card, and then will be required to complete a formality. The fee is charged to the card to "activate" it. If the victim finds it troublesome at this time and requests to cancel the limit upgrade, the other party will ask the victim to receive a verification code and inform him that the operation has been "cancelled."

In fact, once the victim informs the received verification code, the criminal can complete the fraud. The three-digit CVV2 code on the back of the credit card is the security code of the credit card when conducting online or telephone transactions. It is usually used to confirm that the payer actually holds the credit card during the transaction.

Since some websites, especially overseas websites, do not require a password when paying via credit card network, and transactions can be completed using only the card number, validity period and CVV2 code, the CVV2 code is almost as important as the password. Therefore, you must be vigilant. It is best to go to the bank counter in person to handle it, and do not leak the CVV2 code easily.

Extended information:

The three numbers on the back of the CVV2 code credit card are very important and must not be easily disclosed to others. The CVV2 code is usually printed on the back of the credit card after the signature. It is the last three digits in italics. It is mainly used to verify that the payer owns the credit card at the time of transaction. The CVV2 code is equivalent to the credit card's ID card. Card holders can use this codes for consumer transactions.

Passwords are not required for overseas website shopping. As long as the buyer provides an account number and security code, the transaction can be completed. Domestic merchants also sign contracts with banks, and no password is required for online or telephone transactions. Just the security code is sufficient. Complete the transfer. Therefore, the importance of the CVV2 code is self-evident. Do not disclose your CVV2 code and related information easily.

People's Daily Online - Don't leak the three-digit security code on the back of your credit card easily