The CVV (Card Verification Value) on a debit card is a 3-digit security code found on the back of the card, typically on the signature panel. It is used to authorize payments made online or over the phone, providing an additional layer of security by proving that the card is in the possession of the person making the transaction
. The CVV is unique to the card and account holder, and it is not the same as the PIN (Personal Identification Number) used for ATM transactions
. It helps protect against fraudulent transactions, as it is not stored in the payment gateway and is required for each payment made
. The CVV is generated by the card issuer and is based on unique factors like the card number, expiration date, and particular codes from the card issuer
