Wireless Payment Reader Fraud Detection via Behavioral Profiling

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Solution Overview

Problem

Traditional payment terminals are not suitable for mobile businesses like taxis and food trucks, as they require a fixed location and wired connections, making them vulnerable to fraudulent activities such as reader swapping and malware attacks, which can lead to unauthorized transactions.

Innovation Solution

A payment system that includes a POS terminal and a payment reader communicating over a wireless connection, using behavioral analysis to track and authenticate the payment reader's behavior, establishing a unique reader profile based on its characteristics, and comparing it to a threshold to detect deviations, thereby preventing unauthorized connections and transactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional payment terminal is used, then payment processing capability is provided, but portability and mobility are lost due to fixed location and wired connection requirements

Engineering Contradiction:

ImproveportabilityVSAvoidconnection complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces wired mechanical connections with wireless communication technology. The portable payment reader uses wireless interfaces (Bluetooth, Wi-Fi, NFC) to communicate with mobile devices and payment terminals, eliminating the need for physical cables and fixed electrical connections, thereby achieving portability while maintaining communication functionality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The portable payment reader is designed to work with multiple types of mobile devices (smartphones, tablets, wearables) and support various payment methods (contactless, magnetic stripe, chip cards). This multi-functionality allows a single portable device to replace multiple fixed terminals, enhancing adaptability across different business scenarios

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple payment readers are deployed for mobile businesses, then service coverage is improved, but identification and connection management become difficult

Engineering Contradiction:

Improveservice coverageVSAvoidconnection management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system implements feedback mechanisms where each portable payment reader transmits unique identification signals and status information to connected mobile devices. The mobile device receives and processes this feedback to automatically manage connections, displaying which readers are available and facilitating seamless switching between multiple readers without manual intervention

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The mobile device acts as an intermediary between multiple payment readers and the payment processing system. It manages the connections by receiving signals from various readers, identifying them through unique codes, and routing communication appropriately, thereby simplifying the complexity of managing multiple portable readers

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If portable payment readers are used, then mobility is achieved, but security against fraudulent activities is reduced due to unauthorized connections

Engineering Contradiction:

ImprovemobilityVSAvoidtransaction security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary authentication actions before allowing transactions. The portable payment reader and mobile device exchange authentication credentials and verify each other's identities through encrypted handshakes prior to establishing a transaction connection. This preliminary security check prevents unauthorized devices from initiating fraudulent transactions

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements preliminary anti-actions by detecting and blocking potential fraudulent connections before they can execute unauthorized transactions. The authentication protocol includes verification steps that identify and reject devices with invalid credentials, mismatched identifiers, or suspicious connection patterns, thereby preventing fraud before it occurs

Inventive Principle:

Principle #9Preliminary anti-action

4Reliability

If behavioral analysis is implemented for fraud detection, then transaction security is improved, but system complexity increases

Engineering Contradiction:

Improvefraud detectionVSAvoidsystem architecture

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The portable payment reader and mobile device perform self-service behavioral analysis by automatically monitoring their own connection patterns, transaction frequencies, and operational characteristics. The system builds baseline behavioral profiles locally and automatically detects deviations without requiring external monitoring infrastructure, thereby improving fraud detection while minimizing additional system complexity

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS10878418B2Fraud detection in portable payment readers

Publication Date: 2020.12.29 BLOCK INC

AI summary

A payment reader and a POS terminal may communicate over a wireless connection. The methods and systems include receiving, from POS terminal, a request for establishing a network connection with the payment card reader. The server determines whether the payment card reader is associated with the POS terminal or a payment application thereon. If the payment card reader is not associated with the POS terminal or the payment application thereon, the server determines the probability of the request being fraudulent.