What is a Card Security Code?

A credit card security code is a unique three of four digit number, seperate from your credit card number, used to authenticate account details and protect against fraud.

Where can I find the Card Security Code?

Visa, Mastercard and Discover Users:
Visa, Mastercard and Discover CSC

Flip your card over and look at the signature box. You should see either the entire 16-digit credit card number or just the last four digits followed by a special 3-digit code. This 3-digit code is your Card Security Code.

 
American Express Users:
American Express CSC

Look for the 4-digit code printed on the front of your card just above and to the right of your main credit card number. This 4-digit code is your Card Security Code.

 
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