Exhibit 99.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly  Report of Integrated  Security  Systems,  Inc.
(the  "Company") on Form  10-QSB/A for the quarter  ended  December 31, 2001, as
filed with the  Securities  and  Exchange  Commission  on the date  hereof  (the
"Report"),  I, C.  A.  Rundell,  Jr.,  Chief  Executive  Officer  and  Principal
Executive  and  Financial  Officer  of  the  Company,  certify,  pursuant  to 18
U.S.C.ss.  1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that to my knowledge:

         (1)    The Report fully complies with the requirements of Section 13(a)
or 15(d) of the Securities Exchange Act of 1934, as applicable; and

         (2)    The information  contained in the Report fairly presents, in all
material  respects,  the  financial  condition  and results of operations of the
Company at the dates and for the periods indicated.



 /S/ C. A. RUNDELL, JR.
 ---------------------------
 C. A. Rundell, Jr.
 Chief Executive Officer and Principal Executive and Financial Officer

 Dated: February 13, 2003