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IDENTIFICATION AND MANAGEMENT OF FRAUDULENT CREDIT/DEBIT CARD PURCHASES AT MERCHANT ECOMMERCE SITES

  • US 20080046334A1
  • Filed: 07/26/2007
  • Published: 02/21/2008
  • Est. Priority Date: 04/06/2000
  • Status: Active Grant
First Claim
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1. A computer implemented method for processing an online transaction, the method comprising the steps of:

  • generating from an online transaction of a purchaser, a plurality of keys from key fields of the transaction that individually do not reliably identify the purchaser;

    for each key, retrieving a profile of historical transactions associated with the key;

    weighting each profile with a weight indicating a degree to which the profile is associated with current purchaser; and

    generating a fraud score indicative of the likelihood of fraud in the online transaction as a function of the weighted profiles and the current transaction.

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