James Bronzz, WalletHub Analyst
The American Express security code is a 4-digit number on the front of the card – located above the card number, on the right side. The security code is important for making purchases online or over the phone, when the cardholder can’t swipe or insert their Amex card in person. Those transactions will require three components – the card number, the security code and the card’s expiration date. So if someone gets access to the card number but doesn’t have the security code, they cannot use the card to make fraudulent purchases.
You might also see an American Express security code referred to as a CSC or CID. Those stand for Card Security Code and Card Identification Number. Other card networks may use terms like Card Verification Value, Card Verification Code or Card Verification Data.
If you get a replacement American Express card, it will come with a new security code and expiration date for added protection.
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