Cardholder-Controlled Transaction Initiation via Network Mediator
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Solution Overview
Problem
The existing payment card systems expose card and account numbers to potential fraud, and there is a need for a more secure environment to enable cardholders to initiate transactions remotely without relying on merchant-controlled points of interaction.
Innovation Solution
A method and system that allows cardholders to initiate financial transactions using a cardholder-controlled input device connected to a payment card network and a database, where merchant data is stored, and transaction data including authorization requests are processed through a server system to verify merchant registration and communicate with the issuer bank, ensuring secure authorization without exposing account numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cardholders use traditional merchant-controlled points of interaction (POS devices, merchant websites), then transactions can be processed through the bankcard network, but card and account numbers are exposed to potential fraud
Solution Approach 1:
The patent inverts the traditional transaction initiation model by enabling cardholders to directly initiate transactions through their own devices (mobile phones, PDAs, computers) without merchant-controlled POIs. This reversal eliminates the need for card information to be entered into merchant systems, thereby preventing exposure and fraud while maintaining bankcard network processing
Solution Approach 2:
The patent introduces a bankcard network intermediary that facilitates communication between cardholder devices and merchant systems without requiring direct exposure of card information. The network acts as a secure mediator that transmits necessary transaction data while keeping account numbers confidential, resolving the security contradiction
2Reliability
If cardholders initiate transactions remotely from their own devices, then account number exposure is reduced, but the system complexity increases due to need for secure communication protocols and authentication mechanisms
Solution Approach 1:
The patent leverages universally available devices (mobile phones, PDAs, computers with browsers) that cardholders already possess, eliminating the need for specialized hardware. The bankcard network extends its functionality to support remote initiation from these diverse devices using existing communication protocols, thereby reducing system complexity while maintaining security
Solution Approach 2:
The patent enables cardholders to self-initiate transactions using their own devices without requiring merchant system intervention or specialized equipment. The cardholder's device serves itself as the point of interaction, simplifying the overall system architecture by removing the need for complex merchant-controlled POIs while maintaining security through network-mediated communication
Data Source
AI summary
A cardholder-initiated financial transaction using a cardholder controlled input device in communication with a payment card network and a database is disclosed. The cardholder uses a payment card issued to the cardholder by an issuer bank. An exemplary method includes the steps of storing merchant data within the database including data identifying the merchants registered to utilize the card network and receiving from the input device transaction data relating to the financial transaction. The transaction data includes an authorization request and merchant identifying data that identifies the merchant involved in the transaction. The method further includes determining that the identified merchant is registered to utilize the card network by comparing the transaction data with the merchant data stored in the database, forwarding the authorization request to the issuer bank, receiving a response to the request from the issuer bank, and automatically forwarding the response to the input device.