AUTHORIZING USE OF A FINANCIAL INSTRUMENT

摘要

Computer-implemented method and system are provided for verifying a financial instrument. The method comprises receiving, via a user interface, a request to use a financial instrument. A transaction processor initiates at least one transaction having a variable detail, using the financial instrument, and saves the variable detail. A requested detail relating to the at least one transaction is received via the user interface and the transaction processor compares the stored detail with the requested detail. The transaction processor authorizes the use of the financial instrument in response to receiving the correct input that matches the saved variable detail.