Importance

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Abstract

A method and a system are provided for authenticating secure payment card transactions and verifying and validating payment card user identities. The method includes receiving information from a transaction device involving a payment card holder initiating a payment card transaction at a merchant using a mobile device having a Near Field Communication (NFC) circuit that is communicatively coupled thereto; determining coordinate location of the merchant by leveraging a physical address of the merchant; determining coordinate location of the mobile device using an application programming interface (API) framework that is sufficient to support communication with a cellular phone communication provider; comparing the coordinate location of the merchant with the coordinate location of the mobile device to determine a relative degree of proximity of the merchant with the mobile device; and assessing the determined relative degree of proximity to facilitate determining whether the payment card transaction using the mobile device is valid or invalid (e.g., potential fraud).

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First Claim