![]() The card security code is located on the back of Visa, MasterCard, Diners Club, Discover, and JCB debit or credit cards and is typically a separate group of 3 digits to the right of the signature strip.ĬVVs, CVV2s called card verification data, card verification number, card verification value, card security code (CSC), are 3-digit Card Verification Values that are all calculated using the same CVV algorithm, for "card not present" payment card transactions instituted to reduce the incidence of credit card fraud. ![]()
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