E-Card NFC Interrogation Reporting for Fraud Prevention

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Solution Overview

Problem

Unauthorized transactions can occur with electronic NFC cards without the owner's awareness, leading to potential fraudulent 'ghost purchases' due to lack of real-time monitoring and authorization.

Innovation Solution

An apparatus and method that include a processor and computer-readable storage medium to receive NFC interrogation signals from POS assemblies, allowing for automatic reporting of transactions to a consumer electronics device, which can prompt the owner for authorization before completing transactions, using Bluetooth and NFC technologies for communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If automatic NFC transaction response is implemented, then transaction speed and convenience are improved, but security against unauthorized transactions deteriorates

Engineering Contradiction:
Improvetransaction speedVSAvoidtransaction security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary actions by notifying the customer device of an attempted transaction before the e-card responds to the POS assembly. This advance notification allows the customer to authorize or block the transaction beforehand, preventing unauthorized transactions while maintaining automatic response capability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring NFC interrogation signals and immediately notifying the customer device of transaction attempts. This real-time feedback loop enables the customer to control transaction authorization, balancing automatic response speed with security oversight.

Inventive Principle:
Principle #23Feedback

2Reliability

If real-time transaction monitoring is added, then security against ghost purchases is improved, but device complexity increases

Engineering Contradiction:
Improvefraud preventionVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses the customer's existing mobile device as an intermediary between the e-card and the POS assembly. This intermediary receives NFC interrogation signals, notifies the customer, and relays authorization decisions back to the e-card, adding security without requiring a completely new system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The customer device serves multiple functions: it acts as a notification receiver, authorization decision-maker, and communication bridge between the e-card and POS assembly. This multi-functionality reduces the need for separate dedicated security devices, minimizing added complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If customer authorization is required before transaction completion, then security is improved, but transaction time increases

Engineering Contradiction:
Improvetransaction authorizationVSAvoidtransaction delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system uses periodic action by implementing time-based authorization thresholds. For small transactions below a predetermined threshold, automatic authorization occurs without customer notification. For larger transactions, customer authorization is required. This periodic differentiation balances security with transaction speed.

Inventive Principle:
Principle #19Periodic action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances security by alerting the card owner of potential fraudulent transactions and allowing for real-time authorization, thereby reducing unauthorized use and protecting against 'ghost purchases'.

Implementation Method 1

The card includes an NFC element that is responsive to an interrogation signal from the POS assembly by providing card data in response to the interrogation signal

Methodology Applied
Scientific EffectNear Field Communication (NFC): Electromagnetic Induction

Implementation Method 2

The card further includes a Bluetooth element that is responsive to the transaction notification by wirelessly communicating with the computing device

Methodology Applied
Scientific EffectBluetooth wireless communication: Electromagnetic Induction

Data Source

PatentUS10262316B2Automatic notification of transaction by bank card to customer device
Publication Date: 2019.04.16 SONY GROUP CORP
  • US10262316B2 patent drawing
  • US10262316B2 patent drawing
  • US10262316B2 patent drawing

AI summary

A bank customer's electronic debit or credit card (“e-card”) automatically reports to the customer's CE device the receipt of transaction interrogations the e-card receives from a point of sale (POS) apparatus. The e-card may simply report to the CE device and respond to the interrogation, or it may await a signal from the CE device prior to responding to the interrogation.