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EXHIBIT 32.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002
I, T. Kendall Hunt, certify, based upon a review of the Quarterly Report on Form 10-Q for VASCO Data Security International, Inc. for the quarter ended March 31, 2011, that to the best of my knowledge:
(1) | The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and |
(2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. |
/s/ T. Kendall Hunt
|
T. Kendall Hunt |
Chief Executive Officer and Chairman of the Board of Directors |
May 6, 2011 |