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                                UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549



                                   FORM 8-K



                                CURRENT REPORT
    PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934




Date of Report (Date of earliest event reported):  March 11, 1998







                   VASCO DATA SECURITY INTERNATIONAL, INC.
            (Exact name of registrant as specified in its charter)




                                                               
         Delaware                                              36-4169320
(State or other jurisdiction             (Commission           (IRS Employer
     of incorporation)                   File Number)       Identification No.)



                            1901 South Meyers Road
                         Oakbrook Terrace, Illinois 60181
             (Address of principal executive offices) (Zip Code)



Registrant's telephone number, including area code:  (630) 932-8844






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        VASCO Data Security International, Inc. (the "Registrant") hereby 
files this Form 8-K.


ITEM 5.  OTHER EVENTS

        On March 11, 1998, the Registrant completed its exchange offer (the
"Exchange Offer") for securities of VASCO Corp., a Delaware corporation ("VASCO
Corp."). Pursuant to the Exchange Offer, VASCO Corp. became an approximately
96.5% owned subsidiary of Registrant. On March 12, 1998, Registrant issued a
press release announcing the completion of the Exchange Offer.

        On March 17, 1998, the Registrant announced that a NASD broker/dealer
submitted an application to the NASD Electronic Bulletin Board for quotation on
that system of Registrant's Common Stock, par value $.001 per share, and that
the trading symbol, VDSI, had been requested.

        On March 19, 1998, Registrant issued a press release which (i)
reiterated that an application had been submitted to the NASD Electronic
Bulletin Board for quotation of Registrant's Common Stock; (ii) the symbol,
VDSI, had been requested for Registrant's Common Stock; (iii) VASCO Corp. was an
approximately 96.5% owned subsidiary of Registrant; (iv) shares of VASCO Corp.
not exchanged in the Exchange Offer remain shares of VASCO Corp.; (v) trading
activity in VASCO Corp. represented only those shares that were not exchanged
in the Exchange Offer into Registrant's Common Stock; (vi) the trading symbol,
VASC, is the symbol for the VASCO Corp. common stock; and (vii) any reference
to the VASC symbol refers to VASCO Corp. common stock, not to the Common Stock
of Registrant.

        On March 20, 1998, Registrant announced that its Common Stock would
begin trading on the NASD Electronic Bulletin Board system with the symbol VDSI
and reiterated that (i) Registrant is the owner of 96.5% of the common stock of
VASCO Corp.; (ii) the trading symbol, VASC, is the symbol for the VASCO Corp.
common stock; and (iii) any reference to the VASC symbol refers to VASCO Corp.
common stock, not to the Common Stock of Registrant.



ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

        (c)     Exhibits

            99.1     Registrant's Press Release dated March 12, 1998
            99.2     Registrant's Press Release dated March 17, 1998
            99.3     Registrant's Press Release dated March 19, 1998
            99.4     Registrant's Press Release dated March 20, 1998





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                                  SIGNATURES


        Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.





                                    VASCO Data Security International, Inc.



Dated:  March 30, 1998              /s/ Gregory T. Apple
                                    ----------------------------------------
                                    Gregory T. Apple
                                    Vice President - Finance and Administration



























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                                                                  EXHIBIT-99.1

          [VASCO LOGO]
          VASCO DATA SECURITY, INC.
          1901 S. MEYERS ROAD, SUITE 210
          OAKBROOK TERRACE, IL 60181
          PHONE:  630-932-8844   FAX:  630-495-0279
          INTERNET HOME PAGE:   http://www.vasco.com
          NEWS RELEASE

                   VASCO DATA SECURITY INTERNATIONAL, INC.
                           COMPLETES EXCHANGE OFFER

     OAKBROOK TERRACE, IL, and BRUSSELS, Belgium, March 12, 1998 --VASCO Data
Security International, Inc. ("VDSII"), a newly organized subsidiary of VASCO
Corp. (OTC-Bulletin Board: VASC), announced today that it has successfully
completed its offer (the "Exchange Offer") to exchange VDSII shares, options,
and warrants for VASCO Corp. shares, options and warrants (and a release of
possible claims based on certain legal and procedural irregularities as
described in the prospectus for the offer).  The Exchange Offer expired at 5:00
p.m., Chicago, Illinois time, on March 11, 1998.

     As of March 11, 1998, preliminary computations indicated that the
following amounts were tendered for exchange:

- -    20,048,638 shares of Common Stock (or approximately 96.5% of the total
     shares outstanding),
- -    1,311,250 options (or approximately 99.9% of the total options 
     outstanding), and
- -    1,055,195 warrants (or approximately 99.8% of the total warrants 
     outstanding).


     VASCO Corp., headquartered in Oakbrook Terrace, Illinois, and its foreign
and domestic subsidiaries design, develop, market and support open-standards-
based hardware and software security systems which manage and secure access to
data.  VASCO Corp.'s computer security subsidiaries include VASCO Data
Security, Inc., headquartered in Oakbrook Terrace, Illinois, and VASCO Data
Security nv/sa of Brussels, Belgium.

     Standard & Poor's CORPORATION RECORDS provides coverage on VASCO Corp.
For more information contact:


VASCO Corp.
Ken Hunt, CEO
630-932-8844 -- voice            tkh@vasco.com             
630-495-0279 -- fax              OTCBB Symbol. VASC        
http://www.vasco.com             800-290-7215 Fax on Demand






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                                                                   EXHIBIT-99.2

          [VASCO LOGO]
          1901 S. MEYERS ROAD, SUITE 210
          OAKBROOK TERRACE, IL 60181
          PHONE:  630-932-8844   FAX:  630-495-0279
          INTERNET HOME PAGE:   http://www.vasco.com
          NEWS RELEASE


                   VASCO DATA SECURITY INTERNATIONAL, INC.
                      APPLIES TO TRADE UNDER SYMBOL VDSI
                                      

OAKBROOK TERRACE, IL, and BRUSSELS, BELGIUM, March 17, 1998 - - VASCO Data
Security International, Inc. (VDSI), formally a subsidiary of VASCO Corp.,
(OTCBB:VASC), announced today that a NASD broker/dealer has submitted
application to the NASD Electronic Bulletin Board for quotation of the common
stock on that system.  That application is currently pending and a new trading
symbol, VDSI, has been requested.

At the end of business on March 11, 1998 VDSI's offer to exchange VASCO Corp.
shares on a one-for-one basis was completed with approximately 96.5 percent of
the common shares offered for exchange.  Accordingly, VDSI is the owner of 96.5
percent of the common shares of VASCO Corp.

     VDSI, headquartered in Oakbrook Terrace, Illinois, and its foreign and
domestic subsidiaries design, develop, market and support open-standards- based
hardware and software security systems which manage and secure access to data.
VDSI's computer security subsidiaries include VASCO Data Security, Inc.,
headquartered in Oakbrook Terrace, Illinois, and VASCO Data Security nv/sa of
Brussels, Belgium.

For more information contact:


VASCO Data Security International, Inc.
Ken Hunt, CEO
630-932-8844 -- voice                        tkh@vasco.com
630-495-0279 -- fax                          OTCBB Symbol. VASC
http://www.vasco.com                         800-290-7215 Fax on Demand







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                                                                   EXHIBIT-99.3

          [VASCO LOGO]
          1901 S. MEYERS ROAD, SUITE 210
          OAKBROOK TERRACE, IL 60181
          PHONE:  630-932-8844   FAX:  630-495-0279
          INTERNET HOME PAGE:   http://www.vasco.com
          NEWS RELEASE


                   VASCO DATA SECURITY INTERNATIONAL, INC.
             CLARIFIES TRADING STATUS OF PREDECESSOR, VASCO CORP.


     OAKBROOK TERRACE, IL, and BRUSSELS, BELGIUM, March 19, 1998 -- VASCO Data
Security International, Inc. (VDSI) stated that, as previously reported, its
application to the NASD Electronic Bulletin Board for quotation of the VDSI
common stock is pending and a new trading symbol, VDSI, has been requested for
the VDSI common stock.  The common stock of VDSI is not currently approved for
trading on the NASD Electronic Bulletin Board.  VDSI will issue a press release
following notification that its application for trading on the Electronic
Bulletin Board has been approved.

     As previously reported, through an exchange offer VDSI acquired
approximately 96.5 percent of the common stock of VASCO Corp. (OTCBB: VASC).
Therefore, approximately 700,000 VASCO Corp. common shares were not tendered
and acquired in the exchange offer.  VASCO Corp. is now a 96.5 percent owned
subsidiary of VDSI.  Shares of common stock of VASCO Corp. which were not
exchanged in the VDSI exchange offer remain shares of VASCO Corp.  Trading
activity in VASCO Corp. represents only those shares that were not exchanged in
the exchange offer into New VASCO Data Security International Inc. common
shares.  The trading symbol, VASC, is the symbol for the VASCO Corp. common
stock.  Any reference to the VASC symbol refers to VASCO Corp. common stock,
not to the common stock of VDSI.

     VDSI, headquartered in Oakbrook Terrace, Illinois, and its foreign and
domestic subsidiaries design, develop, market and support open-standards-based
hardware and software security systems which manage and secure access to data.
VDSI's computer security subsidiaries include VASCO Data Security, Inc.,
headquartered in Oakbrook Terrace, Illinois, and VASCO Data Security nv/sa of
Brussels, Belgium.

For more information contact:


VASCO Data Security International, Inc.
Ken Hunt, CEO
630-932-8844 -- voice                          tkh@vasco.com
630-495-0279 -- fax
http://www.vasco.com                           800-290-7215 Fax on Demand



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                                                                   EXHIBIT-99.4

          [VASCO LOGO]
          1901 S. MEYERS ROAD, SUITE 210
          OAKBROOK TERRACE, IL 60181
          PHONE:  630-932-8844   FAX:  630-495-0279
          INTERNET HOME PAGE:   http://www.vasco.com
          NEWS RELEASE


                   VASCO DATA SECURITY INTERNATIONAL, INC.
                         COMMON STOCK BEGINS TRADING

                            TRADING SYMBOL:  VDSI

     OAKBROOK TERRACE, IL, and BRUSSELS, BELGIUM, March 20, 1998 -- VASCO Data
Security International, Inc. (VDSI) (OTC-Bulletin Board: VDSI), formally a
subsidiary of VASCO Corp. (OTC-Bulletin Board: VASC), said that VDSI common
stock will begin trading on the NASD Electronic Bulletin Board system today
with the symbol:  VDSI.

     At the end of business on March 11, 1998 VDSI's offer to exchange VASCO
Corp. shares on a one-for-one basis was completed with approximately 96.5
percent of the common shares offered for exchange.  Accordingly, VDSI is the
owner of 96.5 percent of the common shares of VASCO Corp. The trading symbol,
VASC, is the symbol for the VASCO Corp. common stock.  Any reference to the
VASC symbol refers to VASCO Corp. common stock, not to the common stock of
VDSI.

     VDSI, headquartered in Oakbrook Terrace, Illinois, and its foreign and
domestic subsidiaries design, develop, market and support open-standards-based
hardware and software security systems which manage and secure access to data.
VDSI's computer security subsidiaries include VASCO Data Security, Inc.,
headquartered in Oakbrook Terrace, Illinois, and VASCO Data Security nv/sa of
Brussels, Belgium.

For more information contact:

VASCO Data Security International, Inc.


Ken Hunt, CEO                            630-932-8844 -- voice     
tkh@vasco.com                            630-495-0279 -- fax       
http://www.vasco.com                     800-290-7215 Fax on Demand