A card verification value is an automatically embedded magnetic strip or embossed and printed code that is automatically presented on a card. The CSC is utilized as a security feature in ATM card transactions, in which the card holder cannot manually input a specific personal identification number. The CSC expires after a certain period of time and cannot be renewed manually. This feature is also commonly referred to as membership card validation.
A card verification value is usually embedded in the center part of the card and is visible from the outside. For a traditional credit card, a CSC can be either magnetic stripe or magnetic ink in small print. With the newer generation of credit cards, a magnetic verification code is embedded in the magnetic field part of the card, which cannot be copied or altered mechanically. For added security, a signature panel may also be used, which authenticates the cardholder's signature at the time of payment. A signature panel may be combined with a CSC in some cards or may have its own independent verification system.
To provide an improved authentication process, some ATM card issuers require the cardholder to insert a special “magnet strip” into a hole provided by the card issuer in order to insert the card details into the reader. The magnetic strip, which contains a unique transponder code, is then verified by the card verification value. Usually, the CSC contains a random binary code that is exclusive to the card issuer and cannot be copied. In addition, the verification code must be displayed in a prominent position so that the cardholder can easily identify it. The card verification value, together with the signature panel, is then encrypted and stored on the chip inside the card. The encryption process is done so that anyone who can read the chip can't automatically decipher the CSC and the signatures.
A card verification code, usually eight numbers long, is shown on a label, embedded within the plastic credit card or secured by a small magnetic strip. The code must be composed of at least one numeral and at most two higher-case alpha-numeric characters. In some cases, the credit card verification code may contain a signature panel. Either way, the entire process of card verification code entry is carried out by a machine that performs some kind of mathematical algorithms.
When the customer swipes his card at a participating merchant, the merchant may also request for his debit or credit card verification value. If the customer's debit card matches the same pattern of numbers on both parties' debit and credit cards, the card verification value is then calculated. The result of the algorithm is either true (the card verification value is valid) or false (the card verification code doesn't match). If the result of the algorithm is true, the customer is granted his debit card and if the result of the algorithm is false, the customer is denied his credit card.
A Voucher Card Verification Value (VCV) is a two-digit code used by some merchants and companies to validate debit and credit card numbers. Usually, a V CVV is printed on the . . . . . . back of the card. When a customer swipes his card at a participating merchant, the system compares the V CVV to a stored list of all existing VCCV numbers. If the two do not match, a signal is generated and the transaction is declined.
The UPC, or Uniform Resource Code, is a three-digit code used in conjunction with a set of identifying manufacturer and model numbers. A UPC can be one of eight unique alphanumeric character codes, which are either upper-case or lower-case letters, numbers, symbols, hyphens, or dots. UPCs are used for advertising electronic goods, including catalogs and newspaper ads. In the United States, a UPC is imprinted directly onto a plastic product, such as a bar code. Because the use of UPC barcodes has decreased in favor of debit and credit card verification values, several manufacturers have introduced a universal barcode format that is recognized by merchants worldwide. Major U.S. retailers accept both types of barcodes.
A Voucher Card Verification Value, or CVV, is an assigned numeric value, usually seven-digit, that is printed on a plastic card that contains a magnetic strip and is used by some merchants to facilitate transactions. A V CVV number must be matched to a current bank account number and may also be required for ATM transactions. A Voucher Card Verification Value cannot exceed eight digits. The UPC does not appear on a debit card. Voucher cards are frequently issued by gas stations and other retail outlets.
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A credit card security code is usually a series of digits plus the bankcard number that are printed or embossed on the back of the card. The CSC is typically used as a safety feature for debit card transactions, in which the cardholder cannot manually input a sensitive personal identification number. In this way, ...
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