Secure Element Payment Mapping for Lost Device Security

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Solution Overview

Problem

There is a security risk associated with lost electronic devices that can be used to conduct fraudulent financial transactions, as existing technologies do not effectively disable or re-enable the capability to perform financial transactions securely.

Innovation Solution

An electronic device and a management device communicate to disable or re-enable financial transactions by altering the mapping between a device primary account number and a financial primary account number, using authentication information such as personal identification numbers, passcodes, or biometric identifiers, and can request additional authentication information from the user to re-establish the mapping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If financial transaction capability is enabled on electronic devices, then user convenience and productivity are improved, but security risk increases when devices are lost

Engineering Contradiction:
Improvefinancial transaction capabilityVSAvoidfraudulent transaction risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary actions by establishing secure authentication mechanisms and mapping relationships (DPAN to FPAN) before transactions occur. When a device is reported lost, the system proactively disables the mapping relationship in advance, preventing any potential fraudulent transactions before they can happen.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary management system that acts as a mediator between the electronic device and the payment network. This intermediary controls the mapping relationship between DPAN and FPAN, enabling or disabling transaction capability without requiring physical access to the device, thus resolving the security risk while maintaining convenience.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If authentication mechanisms are implemented to secure transactions, then security is improved, but device complexity increases

Engineering Contradiction:
Improvetransaction securityVSAvoidauthentication system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the complex authentication and security management functions from the electronic device itself and places them in a separate management system. The device only needs to store the DPAN and communicate with the management system, while the complex FPAN mapping and authentication logic reside externally, reducing device complexity while maintaining strong security.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The management system serves as an intermediary that handles all complex authentication and security decisions. The electronic device interacts with this intermediary through simple commands, avoiding the need for complex local authentication mechanisms while still achieving high security through the centralized control of the mapping relationship.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11580518B2Disabling mobile payments for lost electronic devices
Publication Date: 2023.02.14 APPLE INC
  • US11580518B2 patent drawing
  • US11580518B2 patent drawing
  • US11580518B2 patent drawing

AI summary

If a user loses an electronic device that has the capability to conduct financial transactions, the user may report that the electronic device is lost using a lost-device software application to a management electronic device associated with a provider of the electronic device. In response to receiving this information, a disabling command is sent to a payment network associated with the financial account of the user to temporarily disable use of the electronic device to conduct the financial transactions. In particular, the electronic device may include a secure element that stores a payment applet for a financial account, and the disabling command may disable a mapping from a virtual identifier for the financial account to a financial primary account number. Subsequently, if the user finds the electronic device, the user may re-enable the capability (and, thus, the mapping) by providing authentication information to the electronic device.