United States Securities and Exchange Commission
                              Washington, DC 20549

                                   Form 12b-25

                           Notification of Late Filing

(Check One): / /Form 10-K / /Form 20-F / /Form 11-K /X/Form 10-Q / /Form N-SAR

                         For Period Ended: March 31, 2003
                         /  /  Transition Report on Form 10-K
                         /  /  Transition Report on Form 20-F
                         /  /  Transition Report on Form 11-K
                         /  /  Transition Report on Form 10-Q
                         /  /  Transition Report on Form N-SAR
                         For the Transition Period Ended:

                         Commission File Number 1-11900
                            CusiP Number 45812J 10 1

If the notification  relates to a portion of the filing checked above,  identify
the Item(s) to which the notification relates:


Part I - Registrant Information

         Integrated Security Systems, Inc.
         8200 Springwood Drive, Suite 230
         Irving, TX  75063


Part II - Rules 12b-25(b) AND (c)

If the subject report could not be filed without  unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed.

         (a)    The reasons  described in reasonable  detail in Part III of this
                form  could not be  eliminated  without  unreasonable  effort or
                expense;

         (b)    The subject annual report, semi-annual report, transition report
                on Form 10-K, Form 20-F, 11-K or Form N-SAR, or portion thereof,
                will be filed on or before the fifteenth  calendar day following
                the  prescribed  due date;  or the subject  quarterly  report of
                transition report on Form 10-Q, or portion thereof will be filed
                on or before the fifth calendar day following the prescribed due
                date; and

         (c)    The  accountant's  statement or other  exhibit  required by Rule
                12b-25(c) has been attached if applicable.





Part III - Narrative

         The Company is currently awaiting financing information and is delaying
filing of the Form  10-QSB for  possible  disclosure  implications.  The Company
anticipates filing the Form 10-QSB on or before May 20, 2003.


Part IV - Other Information

(1)      Name and  telephone  number  of  person  to  contact  in regard to this
         notification:

         David H. Oden
         Haynes and Boone, LLP
         (972) 739-6929

(2)      Have all other periodic  reports  required under Section 13 or 15(d) of
         the  Securities  Exchange  Act of 1934 or Section 30 of the  Investment
         Company Act of 1940 during the  preceding 12 months or for such shorter
         period than the  registrant  was required to file such  report(s)  been
         filed? If answer is no, identify report(s).  /X/ Yes   / / No

(3)      Is it anticipated that any significant  change in results of operations
         from  the  corresponding  period  for  the  last  fiscal  year  will be
         reflected  by the  earnings  statements  to be  included in the subject
         report or portion thereof?  /X/ Yes   / / No


Three Months Ended March 31, 2003 Compared to Three Months Ended March 31, 2002

Sales remained  comparable at approximately $1.2 million for the quarters ending
March 31, 2003 and March 31, 2002.  Gross margin as a percent of sales decreased
by  approximately  5% to 34% for the quarter  ending March 31, 2003 from 39% for
the quarter ending March 31, 2002 due to a less favorable product mix at the B&B
subsidiary.

Operating  expenses  remained  comparable at approximately  $0.7 million for the
quarters ending March 31, 2003 and March 31, 2002.

Nine Months Ended March 31, 2003 Compared to Six months Ended March 31, 2002

The Company's total sales increased by  approximately  $0.8 million,  or 23%, to
$4.2  million  during the nine months  ended  March 31,  2003 from $3.4  million
during the nine months ended March 31, 2002.  This increase is due to an overall
increase in sales at the  Company's B&B  Electromatic,  Inc.  subsidiary.  Gross
Margin remained comparable at 36% and 35% for the quarters ending March 31, 2003
and March 31, 2002, respectively.

Operating  expenses  decreased  approximately  $0.5 million primarily due to the
capitalization  of  software   development  costs  at  the  Intelli-Site,   Inc.
subsidiary.


                        Integrated Security Systems, Inc.
                  -------------------------------------------
                  (Name of Registrant as Specified in Charter)

has  caused  this  notification  to be signed on its  behalf by the  undersigned
hereunto duly authorized.

Date:  May 15, 2003                       By: /s/ C. A. Rundell, Jr.
       ------------                           --------------------------------
                                              C. A. Rundell, Jr.
                                              Director, Chairman of the Board,
                                              and Chief Executive Officer




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