PROMISSORY NOTE



$1,000,000.00      Miami, Florida                  October 13, 1998
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     FOR VALUE RECEIVED, AMERICAN CARD TECHNOLOGY, INC., a Delaware corporation
("Maker") promises to pay to the order of PROMETHEUS TRUST, a trust formed under
the laws of Gibralter ("Holder") at its chief executive office at P.O. Box 270,
Gibralter, or at such other place as may be designated in writing from time to
time by Holder, the maximum aggregate principal sum of up to One Million and
00/100 Dollars ($1,000,000.00), together with interest accruing on the unpaid
balance of this Note, at a fixed rate per annum equal to ten percent (10.00%).
Interest shall be charged on the principal balance from time to time outstanding
on the basis of the actual number of days elapsed computed on the basis of a
three hundred sixty (360) day year.  Interest shall be due and payable in
arrears on the Maturity Date, as hereinafter defined.

     The principal amount of this Note shall be advanced by Holder, at Holder's
sole discretion, from time to time.  Advances and payments under this Note shall
be evidenced by a ledger maintained by Holder and attached hereto which shall
set forth, among other things, the principal amount of any advances and payments
therefor.  The outstanding principal amount, together with all accrued but
unpaid interest thereon, shall be due and payable in full on June 30, 2001 (the
"Maturity Date").

     This Note is subject in all respects to the terms and conditions of that
certain Loan Agreement dated this date between Maker and Holder, including,
without limitation, Events of Default and repayment terms set forth therein.

     Maker hereof further promises to pay, in addition to said principal sum and
interest, all taxes assessed upon this Note, and all reasonable costs and
expenses, including, without limitation, attorneys' fees, incurred in the
collection of this Note.

     Maker shall have the right to prepay the outstanding principal amount of
this Note, in whole or in part at any time.  Any partial prepayments shall be
applied first to accrued and unpaid interest and second to the principal
outstanding under this Note.

     Notwithstanding any provisions of this Note, it is the understanding and
agreement of Maker and Holder that the rate of interest to be paid by Maker to
Holder shall not exceed the highest or maximum rate of interest permissible to
be charged by a lender such as Holder to a commercial borrower such as Maker
under the laws of the State of Georgia.  Any amount paid in excess of such rate
shall be considered to have been payments in reduction of principal.

     Maker waives diligence, demand, presentment for payment, notice of
nonpayment, protest and notice of protest, and notice of any renewals or
extensions of this Note, and all rights under any statute of limitations, and
agrees that the time for payment of this Note may be extended at Holder's sole
discretion, without impairing Maker's liability thereon.


     This Note shall be governed by and construed in accordance with the laws of
the State of Georgia.

                                        AMERICAN CARD TECHNOLOGY, INC.


                                        By:    /s/ Lawrence O. Perl
                                             ----------------------
                                        Its    CEO