Dynamic Validation Code Generation for Credit Card Fraud Prevention
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Solution Overview
Problem
Current credit card transaction security methods, such as CVV numbers, are vulnerable to being learned and used for fraudulent purposes due to their static nature, which can be easily disclosed and passed on, leading to unauthorized transactions.
Innovation Solution
A system and method that generates a unique, encrypted validation code for each transaction based on transaction time and other data, using a networked computing device like a cell phone, where only the bank's authorization center knows the algorithm, making it difficult for the code to be reused or duplicated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a static validation number (CVV) is used for transaction security, then the system is simple to implement and merchants can verify transactions, but the validation number can be easily learned, recorded, and passed on to generate fraudulent transactions
Solution Approach 1:
The patent transforms the static CVV number into a dynamic validation code that changes with each transaction. The validation code is generated based on transaction-specific parameters including time, location, and transaction amount, making it dynamic rather than static. This resolves the contradiction by maintaining simplicity of implementation while significantly improving transaction security through dynamic code generation.
Solution Approach 2:
The patent changes the parameters used for validation from a fixed static number to multiple varying parameters including timestamp, geographic location, and transaction amount. By changing these parameters dynamically for each transaction, the system maintains ease of implementation while preventing fraud that relies on static information being intercepted or memorized.
2Ease of operation
If the CVV number is disclosed to merchants and employees for transaction verification, then transactions can be validated, but the number may be easily recorded and passed on to unauthorized users
Solution Approach 1:
The patent implements preliminary action by generating the validation code at the moment of transaction initiation using real-time parameters. The code is created just-in-time for each specific transaction context, preventing unauthorized use before the transaction even occurs. This resolves the contradiction by enabling validation capability while eliminating the window of opportunity for recording and misusing static validation numbers.
Solution Approach 2:
The patent introduces an intermediary layer between the merchant and the validation number by using a generated code that incorporates transaction-specific data. This intermediary mechanism ensures that even if merchants and employees handle the validation process, they cannot misuse it because the code is tied to specific transaction parameters that would not match fraudulent attempts. This resolves the contradiction by maintaining operational ease while reducing fraud risk through parameter-based validation.
3Reliability
If a new CVV request is required for each transaction, then transaction security is improved, but the process becomes more complex and time-consuming
Solution Approach 1:
The patent implements self-service by enabling the validation code to be automatically generated by the cardholder's device using pre-stored account information and current transaction parameters. The system serves itself by creating the unique validation code without requiring manual intervention or complex external verification processes. This resolves the contradiction by improving transaction security through unique per-transaction codes while minimizing system complexity through automated generation.
4Reliability
If the CVV number is not stored in the merchant's database, then security is improved against database compromises, but each transaction requires additional verification steps
Solution Approach 1:
The patent implements periodic action by generating a fresh validation code for each transaction rather than relying on a stored static number. The code is created periodically at the moment of each transaction using current parameters, ensuring database security while streamlining the process. This resolves the contradiction by preventing database compromise risks while reducing transaction processing time through automated real-time code generation rather than manual verification steps.
Data Source
AI summary
A system, method and program product for account transaction validation which may be downloaded or otherwise installed on a networked computing device such as a cell phone or other networked computing device. The networked computing device provides an encrypted validation code to a merchant for each transaction. The validation code is uniquely computed for each transaction and may be based on transaction time and/or other transaction data. The code algorithm is unique for each cardholder. Only the bank transaction center has knowledge of the particular algorithm for each cardholder. When transaction details such as transaction dollar amount are included in the generation of the code, the code may be used to validate the reported transaction dollar amount. An algorithm is disclosed for generating a unique code based on time and/or transaction dollar amount.