<PAGE>

                                                                    EXHIBIT 10.2

                             [LOGO OF AUTHORISZOR]

October 12, 2000

Mr. Alec Karys
7 Wyndstone Way
Framingham, MA  01701

Re: Offer of Employment
-----------------------

Dear Alec:

Authoriszor Inc. is pleased to extend to you this offer of employment as Vice
President, Engineering for its Authoriszor Ltd. operation.  The details of your
offer are as follows:
<TABLE>
<CAPTION>

<S>                                  <C>
[ ] Reporting to:                    President & CEO

[ ] Start Date:                      October 16, 2000

[ ] Annual Base Salary:              $150,000

[ ] Annual Incentive Bonus:          $37,500 (quarterly incentive objectives to be
                                     defined by management).

[ ] Annual Target Income:            $187,500

[ ] Stock Options:                   100,000 stock options vesting annually
                                     over 4 years @ 25% per year.  Strike price will
                                     be established in accordance with the
                                     company's policy (i.e. the stock option
                                     price is the price of the stock at the market
                                     close on the last business day prior to your start
                                     date).

[ ] Benefits:                        Authoriszor will reimburse you for COBRA Health &
                                     Dental Benefits from your current employer, until
                                     our corporate benefits plan becomes effective on
                                     November 1, 2000. Summary of benefits plan
                                     attached.

[ ] Annual Vacation:                 Three weeks

[ ] Travel:                          Extensive travel may be required to maintain close
                                     contact with U.K. development organization.
</TABLE>
<PAGE>

Mr. Alec Karys
October 12, 2000
Page 2


Quarterly Incentive Objectives
October 16, 2000 - December 31, 2000

     1.  Review current development plan, recommend adjustments to management,
         and manage product engineering to deliver functional NT & UNIX (BETA)
         products by 12/31/00 on new framework.

     2.  Recruit additional staff as required, in a timely manner.

     3.  Establish adequate product planning, timetables, testing procedures and
         processes to ensure on-time delivery and high-quality products.

     4.  Ensure the Engineering organization is able to respond and support
         agreed upon product requirements of our beta customers to ensure we
         close at least 10 reference accounts by 12/31/00.


Other Employment Provisions:

(a)  Services Contract:  Authoriszor will provide you with an employment term
     guarantee of 12 months.  In the event that:  a) you do not voluntarily
     leave Authoriszor during this term; or b) you are not terminated with cause
     during these 12 months, Authoriszor will pay you the balance of your base
     salary up to your 12th month.

(b)  Notice Period:  Six months, after the first year.

(c)  Termination for Just Cause: The Employee's employment may be terminated for
     "just cause", examples of which are defined as follows:

     The Company may unilaterally terminate the Employee's employment hereunder
     "for just cause" at any time during the term of this agreement. Termination
     of the Employee's employment by the Company shall constitute a termination
     "for just cause" if such termination is for one or more of the following
     causes: (i) willful misconduct of the Employee in connection with the
     performance of his assigned duties; (ii) the Employee's willful, material
     breach of this Agreement or the willful breach of duties, which results in
     damage or injury to the Company or adversely affects the business
     activities, operations, reputation, goodwill or image of the Company or its
     customers, (iii) the conviction of the Employee of a felony or proven
     commission (i.e., a substantiated allegation) of an act of fraud or
     embezzlement, either in connection with the performance of his obligations
     to the Company or which materially adversely affects the Employee's ability
     to perform such obligations, or which adversely affects the business
     activities, operations, reputation, goodwill or image of the Company; (iv)
     breach of fiduciary duty as an officer of the Company; (v) the willful
     commission by Employee of an act which induces any employee or customer of
     the
<PAGE>

     Company to break a contract with the Company, other than at the request of
     the Company; or (vi) knowingly infringes or misappropriates any
     intellectual property of the Company,


Mr. Alec Karys
October 12, 2000
Page 3


     including without limitation any trade secrets of any third party.

     Any action or inaction or omission on the Employee's part shall be
     considered willful if taken, or omitted to be taken, as the case may be, by
     the Employee without a reasonable belief that the action or omission was in
     the best interest of the Company or that the act or omission was in good
     faith. After notice of termination for cause has been delivered to the
     Employee, the Employee shall be entitled to have the grounds for
     termination of employment reviewed by the Board of Directors, provided such
     entitlement to review shall not serve to extend the date upon which the
     termination of employment shall become effective. In making any
     determination under this Section, the Board of Directors shall act fairly
     and in utmost good faith and shall give the Employee an opportunity to
     appear and be heard with counsel at a meeting of the Board of Directors and
     present evidence on his behalf.

     In the event of any such termination for "cause," the Employee shall be
     entitled to receive upon termination to: (i) earned and unpaid salary,
     bonus and vacation through the termination date, (ii) benefits for the
     applicable period permitted by statute, provided

     Employee makes the appropriate voluntary contribution payments, and subject
     to applicable law and the requirements of the Company's health and
     insurance plans then in effect, (iii) vested options (to the extent then
     vested) and (iv) no other severance or other compensation benefits, other
     than payments which are required by law to be provided to all discharged
     employees.

(d)  Voluntary Termination.  The Employee may voluntarily terminate his
     employment at

     any time by providing the Company with sixty (60) days prior written notice
     of termination. In the event of any such voluntary termination by the
     Employee, the Employee shall be entitled to (i) accrued and unpaid salary,
     bonus, and vacation through the termination date, (ii) benefits for the
     applicable period permitted by statute, provided Employee makes the
     appropriate voluntary contribution payments, and subject to applicable law
     and the requirements of the Company's health and insurance plans then in
     effect, (iii) vested options (to the extent then vested) and (iv) no other
     severance or other compensation benefits, other than payments which are
     required by law to be provided to all discharged employees.

(e)  At the Election of the Company for Reasons Other Than Just Cause.  The
     Company may, immediately and unilaterally, terminate the Employee's
     employment hereunder at any time during the term of this Agreement without
     "cause" by giving thirty (30) days' advance written notice to the Employee
     of the Company's election to terminate.  During such period, the Employee
     will be available on a full-time basis for the benefit of the Company to
     assist the Company in matters relating to the transition of a new,
     successor officer of the Company.  In the event the Company exercises its
     right to terminate the Employee under this section during the first year,
     the Company agrees to pay the Employee a severance or termination payment
     of six months' base salary at the then current base rate or if greater,
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    the remainder of the initial employment term guarantee of twelve months,
    payable in the same manner as such salary was payable during the term of the
    Employee's employment. Such severance payment shall be payable on a monthly
    basis for the six (6) months

Mr. Alec Karys
October 12, 2000
Page 4

    following the Employee's termination and shall be subject to all applicable
    federal and state taxes, and this obligation shall survive termination of
    this Agreement. In addition, the Employee shall be entitled to (i) accrued
    and unpaid salary, bonus, and vacation through the termination date, (ii)
    Health benefits for the applicable period permitted by statute, provided
    Employee makes the appropriate voluntary contribution payments, and subject
    to applicable law and the requirements of the Company's health and insurance
    plans then in effect, (iii) vested options, and (iv) 50% of the unvested
    stock provided in this agreement.

    In the event the Company exercises its right to terminate the Employee under
    this section after the first year of employment, the Company agrees to pay
    the Employee a severance or termination payment of six months' base salary
    at the then current base rate, payable in the same manner as such salary was
    payable during the term of the Employee's employment.

    Such severance payment shall be payable on a monthly basis for the six (6)
    months following the Employee's termination and shall be subject to all
    applicable statutory taxes, and this obligation shall survive termination of
    this Agreement. In addition, the Employee shall be entitled to (i) accrued
    and unpaid salary, bonus, and vacation through the termination date, (ii)
    benefits for the applicable period permitted by statute, provided Employee
    makes the appropriate voluntary contribution payments, and subject to
    applicable law and the requirements of the Company's health and insurance
    plans then in effect, (iii) vested options, and (iv) 50% of the unvested
    stock provided in this agreement.

    It shall be deemed to be a constructive termination "without cause" if: (i)
    the Employee's responsibilities are reduced or diluted in any material way;
    (ii) the Employee's annual salary or bonus arrangement is reduced in any
    material way; or (iii) the Employee is relocated to another Company office
    or facility to a location outside of a radius of 100 miles from the
    Company's current facility or without the Employee's written consent; or
    (iv) there occurs a determination by the Employee made in good faith that as
    a result of any material change in the scope of the business or other
    activities for which he is responsible, he has been rendered unable to carry
    out, has been hindered in the performance of, or has suffered a reduction
    in, in a material way, of any of the authorities, powers, functions,
    responsibilities or duties attached to the officer position held by
    employee, which situation is not remedied within 30 business days after
    written notice to Company from Employee of such determination.

f)  Change of Ownership: In the event that there is a change of ownership of
    more than 50% in a single or series of transactions, the option shares'
    restrictions will be lifted and the remaining unvested shares of this
    agreement will vest and become immediately exercisable;

g)  Governing Law: This Agreement shall be governed and construed in accordance
    with the laws of the Commonwealth of Massachusetts.
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h)  Insider Trading Policy: You agree to comply with the Company's Insider
    Trading Policy ("Policy") [attached], as the Policy may be amended or
    supplemented from time to time, during your employment with the Company.


Mr. Alec Karys
October 12, 2000
Page 5

Alec, with your significant engineering and management skills, the growing
marketplace requirements for Authoriszor's solutions, and the corporate
management support that you will have available to you from the company's
management, I am confident that Authoriszor can provide you with the opportunity
to fulfill your career and financial income objectives.

Please initial each page, sign, and provide me with a copy of this signed letter
confirming your acceptance of this offer of employment.  This offer expires on
Friday, October 13, 2000.

We are looking forward to your valued contributions to our Authoriszor Team.

Best regards,



_______________________________
Richard A. Langevin
President & CEO

Agreed:                                 Accepted:


_______________________________         ______________________________
Alec Karys                              Richard A. Langevin


Date:__________________________         Date:_________________________