METHOD FOR AUTHENTICATING CREDIT TRANSACTIONS TO PREVENT FRAUDULENT CHARGES

摘要

A dynamic authentication process having multiple tiers of validation. A first tier of validation (104) authenticates the credit transaction based upon static personal identification numbers. If this first tier of validation is satisfied (106), a threshold determination is made as to whether a secondary tier of validation is required (110). These thresholds are defined by either the service provider or the card holder to address the additional costs of a second tier of validation.