It is usually on the back of the card near where you write your signature. Depending on the type of credit card you have, it can appear as the first numbers after your card number. The card security code is used for making online transactions more secure. If someone were to get ahold of your card number, it would be much easier to commit credit card fraud if the CSC was not required. The number is never printed on receipts or anywhere else, so it is much more difficult for a scammer to find it.
Using this number makes it so the merchant knows that you are the actual cardholder when making your purchase. There are actually three different types of card security codes that are used by merchants.
The first is the CVV1 that is encoded in the magnetic stripe on your credit card. This is used for in-person transactions where you are physically using the card. This is not known by the user but lets the point-of-sale system know that the card is physically there. The limitation of the CVV1 is that if the whole credit card is copied by a skimmer, then the code is still valid. The second type of code is called the CVV2, which is the one that is printed on the front or back of your card.
Since a consumer must be in possession of a card to obtain a CSC number, these verification codes were designed to make it harder for criminals to use stolen cards during transactions. Designed to be unknown to everyone but the card owner and the card company, CSC numbers are also never embossed , copied or printed on receipts. Created as a way to keep customers safe, providing a legitimate CSC number lets online merchants know the person on the other end of the transaction is in possession of real credit or debit card.
By requiring CSC verification codes during the authorization process, the card issuer validates or invalidates the code during the approval process. As CSC codes prove, payment security is a constantly evolving industry and savvy merchants must stay one step ahead of hackers and criminals. To keep your company and customers safe and secure during transactions, contact Bluefin today to learn more about our seamless P2PE encryption solutions.
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Teresa Bitler is a former CreditCards. Kelly Dilworth is a personal finance contributor and former staff reporter at CreditCards. She began her career in journalism at The Atlantic in , then detoured into nonfiction book publishing for several years.
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