How to find your credit card security code
The card security code "is one in a series of steps that merchants can take to prevent fraud and verify that the order is being placed by the actual cardholder," says Matthew Towson, senior manager of community affairs for Discover Financial Services, adding that in most cases, the only way for a cardholder to provide the security code is to actually be in possession of the card.
Where you find the security code depends on the card. If you have a Visa, MasterCard or Discover, turn the card over. In the signature box or just to the right of it, you will see a series of digits. However long the series, the final three digits are the security code.
American Express cardholders can find their security code on the front of the card, either to the left or right of the embossed 15-digit card number. These four digits are printed in black, not embossed.
Even as card issuers switch over to chip-equipped cards, security codes will still be printed and used the same way they are now, according to Doug Johnson, vice president of risk management policy for the American Bankers Association.
"For consumers who are conducting online transactions, it's still an important security measure to have," he said. "As we move to chip cards the goal is not to move away from those other important security measures that help protect consumers."
If you can't read the security code for any reason, call the issuing financial institution on the customer service number listed on the back of your credit card. Each financial institution will have its own guidelines for how to handle illegible security codes, but it may require reissuing the card.
Since the security code is a safety feature, just like your PIN, you will want to protect it. Generally, as long as you have a secure connection, you can safely provide it during online transactions.
The merchant is prohibited, for security purposes, from storing the code. However, never provide it to anyone, whether you know them or not, in an email (email is unsecured communication).
Once someone else has your security code, card number and card expiration, it will appear to an online merchant that the someone else, not you, is actually in possession of the card.