What Is the Card Security Code (CSC) ?
 		  

 
A Card Security Code (CSC) is a special security feature of your Visa or MasterCard credit card.
 
Visa Security Code Printed on Back of CardVisa Credit Card Users
Flip your card over and look at the signature box. You should see a 16-digit credit card number followed by a special 3-digit code. This 3-digit code is your Card Security Code (CSC).
 

MasterCard Security Code Printed on Back of CardMasterCard Credit Card Users
Flip your card over and look at the signature box. You should see a 16-digit credit card number followed by a special 3-digit code. This 3-digit code is your Card Security Code.

 

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