Detachable Payment Card Segmentation for Fraud Prevention
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Solution Overview
Problem
Conventional payment card systems face security risks due to the lack of mechanisms to prevent fraudulent transactions when cards are lost or skimmed, as existing security measures fail to immediately halt large fraudulent transactions before the cardholder can block the card.
Innovation Solution
A computer-implemented method and system that utilize a payment card with detachable portions, each equipped with a primary and secondary chip, where a flag indicates the attachment or detachment of these portions, allowing the card processing server to restrict transactions based on predefined limits, thereby preventing unauthorized large transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional payment card systems are used without additional security mechanisms, then transaction convenience is maintained, but security against fraudulent transactions deteriorates
Solution Approach 1:
The payment card is divided into two separate portions: a first portion containing a first chip and a second portion containing a second chip. These portions can be detached from each other, allowing the card to function as a single unit for normal transactions or as separate units for enhanced security. The detachment mechanism creates physical segments that can be independently controlled, resolving the contradiction by adding security through segmentation without permanently increasing structural complexity.
Solution Approach 2:
The payment card transitions from a static, fixed structure to a dynamic, reconfigurable structure. The two portions can be attached or detached based on transaction requirements, allowing the system to adapt its security level dynamically. This dynamic capability enables the card to provide both convenience (when attached) and enhanced security (when detached) without permanent structural complexity.
2Reliability
If the card structure remains simple and fixed, then ease of operation is maintained, but ability to prevent fraudulent transactions deteriorates
Solution Approach 1:
By segmenting the card into detachable portions, the system enables fraud prevention through selective usage. Users can detach portions to prevent unauthorized use while maintaining ease of operation when portions are attached. The segmentation allows the card to communicate its security state to transaction systems, enabling automated fraud prevention without complicating user interaction.
Solution Approach 2:
A processing system acts as an intermediary between the card portions and transaction systems. This intermediary receives information about the attachment/detachment state and coordinates transaction authorization accordingly. The intermediary handles the complexity of fraud prevention logic, allowing users to maintain simple card usage while benefiting from advanced security capabilities.
3Reliability
If encryption and hashing techniques are used to secure card details, then data transmission security is improved, but protection against card skimming deteriorates
Solution Approach 1:
Segmenting the card into detachable portions with separate chips addresses card skimming by ensuring that skimming devices cannot capture complete card information. Each portion contains only partial data, and the detachment mechanism prevents unauthorized replication of the full card details, thereby reducing skimming vulnerability while maintaining data transmission security.
Solution Approach 2:
The system applies preliminary anti-action by proactively preventing card skimming through physical segmentation and detachment capabilities. Before skimming can occur, the card can be divided into portions that individually lack sufficient information for fraudulent transactions. This preliminary measure counteracts the skimming threat before it can execute, complementing encryption techniques.
4Reliability
If existing blocking mechanisms are used after card loss, then transaction security is eventually restored, but time for fraudulent transactions deteriorates
Solution Approach 1:
The system performs preliminary action by enabling users to detach card portions immediately upon suspecting loss or theft, before formal blocking procedures are initiated. This preliminary detachment action prevents fraudulent transactions in real-time, buying time for the blocking mechanism to take effect and ultimately restoring security faster than traditional methods alone.
Solution Approach 2:
The dynamic detachment capability allows the card security state to change immediately in response to potential loss, rather than waiting for static blocking procedures. Users can transition the card from an attached (vulnerable) state to a detached (secure) state instantly, reducing the time window for fraudulent transactions while maintaining the ability to restore full functionality when needed.
Data Source
AI summary
The present disclosure is related to a field of payment transactions using a card that discloses a computer-implemented method and a system for restricting a transaction while using a payment card. A card processing server may receive card details, a transaction amount, a flag, and signature data of the payment card from a remote terminal upon initiating a transaction using the payment card. Further, the card processing server validates the payment card based on the card details and the signature data of the payment card and thereafter determines a value associated with the flag upon successful validation. The value associated with the flag indicates one of two conditions, e.g., a true condition and a false condition. Based on the condition indicated by the flag, the card processing server performs one of a first action and a second action related to either processing or declining the transaction.