What is a Security Code?

This is a three- or four-digit code on your credit card, separate from the 16-digit card number.
The location varies depending on your type of card.


Visa, MasterCard & Discover

Visa, MasterCard & Discover

Back of Card
Three digits located to the right of the signature strip.



American Express

American Express

Front of Card
Four digits located on the right or left side.