NW_20080624_VASCO DATA SECURITY nominated No.14 in BusinessWeek’s “Hot Growth Companies” top 50

OAKBROOK TERRACE, Illinois and ZURICH, Switzerland - June 24, 2008 - VASCO Data Security International, Inc. (Nasdaq: VDSI) (www.vasco.com), a leading software security company specializing in authentication proudly announces that it is listed at No. 14 in BusinessWeek’s list of fastest-growing small companies. The companies which have made this year’s list are trend-spotters and innovators, which have been able to demonstrate the ability to thrive against multinationals with larger market exposure and more foreign competition with cheaper cost structures.

The selection made by BusinessWeek to rank the companies is based on Standard & Poor’s Compustat database of 10,000 publicly traded corporations. Two major changes were made to this year’s selection criteria of the Hot Growth ranking. The performance of each company is now compared with the performance of larger companies in its industry. A tighter screening process is now used, resulting in only 50 companies being ranked compared to 100 companies in previous editions.

About VASCO:
VASCO is a leading supplier of strong authentication and e-signature solutions and services specializing in Internet Security applications and transactions. VASCO has positioned itself as a global software company for Internet Security serving a customer base of close to 7,100 companies in more than 100 countries, including more than 1000 international financial institutions. VASCO’s prime markets are the financial sector, enterprise security, e-commerce and e-government

Forward Looking Statements:
Statements made in this news release that relate to future plans, events or performances are forward-looking statements. Any statement containing words such as “believes,” “anticipates,” “plans,” “expects,” and similar words, is forward-looking, and these statements involve risks and uncertainties and are based on current expectations. Consequently, actual results could differ materially from the expectations expressed in these forward-looking statements.

Reference is made to the Company's public filings with the US Securities and Exchange Commission for further information regarding the Company and its operations.

For more information contact:
VASCO: Jochem Binst, +32 2 609 97 00, [email protected]