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Check fraud prevention system

  • US 6,073,121 A
  • Filed: 09/29/1997
  • Issued: 06/06/2000
  • Est. Priority Date: 09/29/1997
  • Status: Expired due to Fees
First Claim
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1. An improvement to current check fraud prevention methods for printing a check, wherein the improvement comprises the added steps of:

  • (a) reading all the check data to be printed on a check face;

    (b) converting said check data to a line of machine-only readable symbols, using a specially encoded, key-selectable encryption algorithm;

    (c) printing said line of machine-only readable symbols containing check data, above the MICR line of symbols on the lower face of said check;

    whereby, the addition of said line of machine-only readable symbols permits the detection of any unauthorized changes made to the printed data on said check.

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