Issuer System Unique Data Encryption for Fraud Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current payment systems are vulnerable to fraudulent transactions due to malware attacks that intercept and manipulate payment processor communications, making it difficult to detect and prevent fraudulent activities.
Innovation Solution
The system generates unique data for payment transactions, encrypts it using a hardware security module, and verifies the authenticity of the payment transaction authorization response through decryption by the payment server or terminal, ensuring only valid issuers process transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cryptographic means and protocols are implemented to secure payment transactions, then security control is improved, but vulnerable attacks can still intercept communications and lead to fraudulent transactions
Solution Approach 1:
The system performs preliminary actions by generating unique authorization data and encryption keys before the actual payment transaction occurs. The issuer system creates encrypted authorization responses that contain unique data specific to each transaction attempt, which are then validated by the payment terminal before processing. This preliminary encryption and validation prevents fraudulent transactions from being processed even if communication is intercepted.
Solution Approach 2:
The patent introduces an intermediary validation mechanism where the payment terminal acts as a mediator between the issuer system and the payment processing. The terminal receives encrypted authorization responses, validates them against unique transaction data, and only proceeds with processing if validation succeeds. This intermediary step blocks fraudulent transactions that attempt to bypass proper authorization channels.
2Productivity
If malware compromises the payment processing switch to approve fraudulent transactions, then fraud detection difficulty increases, but the system needs to maintain transaction processing efficiency
Solution Approach 1:
The system applies local quality by making each payment transaction authorization unique through encrypted data that is specific to that particular transaction. Instead of using generic authorization tokens, the issuer system generates encrypted responses containing unique data elements (such as transaction-specific identifiers, timestamps, and amounts) that can only be validated for the intended transaction. This local uniqueness prevents malware from using broad compromise methods to approve fraudulent transactions.
Solution Approach 2:
The validation of encrypted authorization data is performed as a preliminary action before the actual payment processing occurs. The payment terminal decrypts and validates the authorization response against the original transaction parameters before allowing the transaction to proceed. This preliminary validation step ensures that even if malware compromises the processing switch later, the fraudulent transaction would have already been blocked at the validation stage.
Data Source
AI summary
Embodiments provide methods and systems for preventing a fraudulent payment transaction. The method performed by issuer system associated with payment account of user includes generating unique data for payment transaction of the user upon approval of payment transaction authorization request signal. The method includes facilitating encryption of the unique data based on encryption key and sending payment transaction authorization response signal to payment server associated with payment network. The payment transaction authorization response signal includes at least the encrypted unique data. The method includes processing the payment transaction upon receiving a notification of a successful validation of the payment transaction authorization response signal from payment server. The validation of the payment transaction authorization response signal is performed by payment server. For validation, payment server decrypts unique data received in payment transaction authorization response and determines match between decrypted unique data and payment data associated with payment transaction authorization request signal.