<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>v012604_ex32-1.txt
<TEXT>
                                                                         EX 32.1

                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, James B. DeBello,  President and Chief  Executive  Officer of Mitek  Systems,
Inc. (the  "Registrant"),  do hereby  certify  pursuant to Rule 13a-14(b) of the
Securities and Exchange Act of 1934, as amended,  and Section 1350 of Chapter 63
of Title 18 of the United States Code that:

(1)   the Registrant's Quarterly Report on Form 10-QSB of the Registrant for the
      period ended December 31, 2004 (the "Report"), to which this statement is
      filed as an exhibit, fully complies with the requirements of Section 13(a)
      or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)   the information  contained in the Report fairly presents,  in all material
      respects,  the  financial  condition  and  results  of  operations  of the
      Registrant.

Date:  February 12, 2005                         By: /s/  James B. DeBello
                                                   -----------------------------
                                                   James B. DeBello
                                                   President and
                                                   Chief Executive Officer



                                       19
</TEXT>
</DOCUMENT>
