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Computerized password verification system and method for ATM transactions

  • US 6,871,288 B2
  • Filed: 02/21/2003
  • Issued: 03/22/2005
  • Est. Priority Date: 02/21/2003
  • Status: Active Grant
First Claim
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1. In a method for operating an automatic teller machine system of the type used to dispense cash to a customer from an associated account and having a card reader for reading a personal access card of the customer with a personal identification number stored thereon, means for inputting a customer selection, a display screen and a central computer for processing a customer request for a cash withdrawal, the improvement comprising the steps of:

  • after reading the personal access card and verifying the personal identification number of the customer;

    generating a plurality of transaction acceptance passwords in the central computer, one of the plurality of passwords being pre-assigned to the customer and stored in the central computer;

    displaying the plurality of passwords on the display screen in a grouped format together with a prompt to the customer for selection of the pre-assigned password;

    dispensing the cash requested for withdrawal upon the inputted selection of the pre-assigned password of the customer; and

    signaling authorities upon the inputted selection of one of the plurality of passwords other than the pre-assigned password as indication that the customer request for cash withdrawal is being made under duress.

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