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                                                                    EXHIBIT 99.1

                                 [PRESS RELEASE]

INTEGRATED SECURITY SYSTEMS, INC. ANNOUNCES FINANCIAL RESTRUCTURING PLAN

October 27, 2000 - For Immediate Release

IRVING, Texas - (BUSINESS WIRE) - Oct. 27, 2000 - Integrated Security Systems,
Inc. (OTCBB:IZZI - news) today announced that it plans to submit to stockholders
for approval a financial restructuring plan.

The company's largest stockholders, Renaissance Capital Growth & Income Fund
III, Inc. and Renaissance US Growth and Income Trust PLC (both managed by
Renaissance Capital Group, Inc.) have agreed to exchange all their convertible
debentures, convertible notes, notes, and accrued interest into a new class of
preferred stock.

The new preferred stock (Class E) would have approximately $6 million principal
amount, a 5% dividend that accrues but is not paid until redemption and would be
convertible into shares of IZZI common stock at $.20 per share. This preferred
series would be redeemable in years three through five, or earlier from the
proceeds of the sale of certain assets.

These same stockholders have agreed to advance a combined $1 million in notes to
IZZI in a private placement. In the event IZZI receives at least $100,000 in
additional subscriptions under this placement, the aforementioned $1 million in
notes will be exchangeable into IZZI's Class F convertible preferred stock. The
Class F convertible preferred stock will have a 5% dividend, which accrues for
two years, and is convertible into common shares at $.20 per share. The notes
will mature in 120 days unless exchanged for the preferred stock.

The effect of this proposal, if approved, would be:

1.   The elimination of debt, debt service requirements and debt covenants would
     improve IZZI's operating flexibility.

2.   IZZI would have a minimum of a $1 million cash infusion.

3.   The common stockholders, other than Renaissance, would be diluted. If the
     Renaissance group fully converted their holdings, they would have
     approximately 77% of the common equity of IZZI after this proposed
     transaction versus 47% prior to this proposal.

A proxy statement will be mailed to all stockholders soon. It will recommend
approval of these transactions and a one for ten reverse split of the stock. It
will also recommend authorization of additional common shares to accommodate
these transactions.

"The Board of Directors of IZZI has considered numerous financing alternatives
over the past six months," stated C.A. Rundell, Jr., Chairman and Chief
Executive Officer of the company. "None was as attractive, or presented the same
opportunity for intermediate term recovery for the shareholders as this
recommended restructuring. I am pleased that Renaissance has seen enough
progress in operations of the

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company over the recent past to believe this restructuring and further
investment on their part will aid the company."

The Board of Directors unanimously recommends the approval of this
restructuring.

Headquartered in Irving, Texas, IZZI is a high technology company that designs,
develops and markets security software to the commercial, industrial and
governmental marketplaces. IZZI's Intelli-Site NT provides users with a software
solution that integrates existing subsystems from multiple vendors without
incurring the additional costs associated with upgrades or replacement.
Intelli-Site NT features a user-defined graphics interface that controls
various security devices within one or multiple facilities. IZZI is also a
leading provider of traffic control and safety systems within the road and
bridge and perimeter security gate industries. In addition, IZZI designs,
manufactures and distributes automatic gates for highway railroad crossings
including FWHA accepted safety barrier gates that are designed to prevent
vehicular intrusion onto railroad crossings. IZZI conducts its design,
development, manufacturing and distribution activities through two wholly-owned
subsidiaries: Intelli-Site, Inc. and B&B Electromatic, Inc.

This information contains certain forward-looking statements. It is important to
note that IZZI's actual results could differ materially from those projected by
such forward-looking statements. Important factors that could cause actual
results to differ materially from those projected in the forward-looking
statements include, but are not limited to, the following: operations may not
improve as projected, new products may not be accepted by the marketplace as
anticipated, or new products may take longer to develop than anticipated.

                                   CONTACTS:

                       Integrated Security Systems, Inc.
                       C. A. Rundell, Jr., Chairman, CEO
                     Holly J. Burlage, Vice President, CFO
                                 (972) 444-8280
                           www.integratedsecurity.com
                              www.intelli-site.com
                                www.bbgates.com


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