TRUNCATION - When only some digits of a customer's card number appear on a sales draft or receipt to provide better security while still enabling identification (for the cardholder) of the card used; it’s required by federal law (since 2006) that no more than the last five digits of a card may be shown on a receipt.
TOKENIZATION - Replacement of sensitive data with a unique identifier that cannot be reversed mathematically; commonly used in payments to replace card data.
ADDRESS VERIFICATION SERVICE (AVS) - The process of validating a cardholder’s given address against the issuer’s records to determine accuracy and deter fraud; a code is returned with the authorization result that indicates the accuracy of the address match
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