Systems and methods for reducing fraud risk for a primary transaction account

US11250432B2 · kind B2 · utility

Assignee

• American Express Travel Related Services Company, Inc. · US

Inventors

• Kathi L. Bernstein · Murray, US
• Youngjoon Park · Seoul, KR

Key dates

• Filing date: Apr 13, 2016
• Grant date: Feb 15, 2022
• Expiry date: Sep 20, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q20/385
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

The system protects an account through the use of tokens, thereby eliminating the need to expose the primary account identifier during a transaction. If a primary account identifier is compromised, any use of the primary account identifier to facilitate a fraudulent purchase or settlement transaction may be blocked by the system. The system is configured to receive a payment authorization request including a payment account first identifier. The payment account first identifier serves as a search condition for a query, which is executed against a database to retrieve payment account information, if the payment account information exists. The system sends a decline response in response to the payment account first identifier and a primary account identifier from the payment account information being the same, indicating that a primary account is being used.