Partial Account Number Transmission for Secure Transactions
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Solution Overview
Problem
Existing systems face challenges in transmitting account numbers between transaction account issuers and merchants while maintaining privacy and compliance with regulations, as full account number transmission is often undesirable and may be prohibited by laws or industry standards.
Innovation Solution
A method where a transaction account issuer transmits a portion of the account number to a merchant, and the consumer provides the remaining portion, allowing for secure and compliant transaction completion without exposing the full account number.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the transaction account issuer transmits the full account number to the merchant, then the transaction processing is simplified and automated, but privacy concerns and regulatory compliance are compromised
Solution Approach 1:
The account number is divided into multiple segments: a first portion transmitted by the issuer to the merchant, and a second portion provided by the consumer. This segmentation allows automated processing while preventing full account number exposure, as neither segment alone can identify the account without the other.
Solution Approach 2:
The consumer acts as an intermediary who provides the second portion of the account number. This intermediary step prevents direct full account number transmission from issuer to merchant, maintaining privacy while enabling transaction processing.
2Object-affected harmful factors
If the consumer enters the full account number manually each time, then privacy and compliance are maintained, but the ease of operation and user experience deteriorate
Solution Approach 1:
The account number entry process is segmented into two parts: the first portion is pre-transmitted by the issuer and stored by the merchant, while only the second portion needs to be provided by the consumer during transactions. This reduces the consumer's input burden while maintaining security.
Solution Approach 2:
The first portion of the account number is transmitted and stored in advance by the merchant, eliminating the need for the consumer to re-enter it with each transaction. This preliminary action improves convenience while the consumer still provides the second portion for security.
3Object-affected harmful factors
If the issuer transmits partial account number, then privacy is protected and compliance is maintained, but the device complexity and processing steps increase
Solution Approach 1:
The account number is segmented into two portions that are collected and processed separately but combined for transaction authorization. This segmentation adds minimal complexity while significantly improving privacy protection and regulatory compliance.
Data Source
AI summary
According to various embodiments, a merchant computing device is configured to obtain a first portion of a transaction account number from at least one transaction account issuer (TAI) computing device and a second portion of the transaction account number from a client device. The merchant computing device is further configured to transmit to the TAI computing device a request to authorize a transaction based at least in part on the first portion and the second portion of the transaction account number. The merchant computing device is further configured to obtain from the TAI computing device data indicating that the at least one TAI computing device authorized the transaction.