June 2, 2008

OAKBROOK TERRACE, Illinois and ZURICH, Switzerland June 2, 2008 - VASCO Data Security International, Inc. (Nasdaq: VDSI) (www.vasco.com), the leading software security company specializing in authentication products, today announced that it is expanding its channel program in the United States to partner with industry leaders who complement VASCO’s service offerings. The objective of the partner program is to maximize joint business opportunities.

The flexibility and scalability of VASCO’s authentication products allows them to be sold to a wide variety of industries including large and small corporations, governments, financial institutions and e-commerce entities. Combined with a growing market demand for strong authentication, this presents an attractive offer to technology companies and Value Added Resellers (VARs). Furthermore, VASCO’s leadership position in the authentication market provides its business partners with the leverage to enhance the value of their core offerings, increase revenue opportunities and strengthen relationships with valued customers. The company provides a full range of resources to support its business partners such as tailored pricing discounts, sales and technical support, educational and marketing materials.

VASCO’s U.S. based Partner Program consists of two levels, Standard and Preferred, to provide its channel partners with tailored benefits depending on their level of commitment. Both levels offer product training, pre-sales technical support, product demos and trial licensing. Additionally, the Preferred level offers an NFR (Not-for-Resale) program, a personal incentive program, and joint marketing &lead generation activities to secure the success of VASCO’s business partners.

“VASCO offers a business mix and brings banking level security to other verticals such as enterprise security, healthcare, e-commerce and e-government”, said Jan Valcke, VASCO’s President & COO. “We are the Full Option, All-Terrain authentication company and extending our channel partner program is part of our strategy. By maximizing VASCO’s and our partners’ business opportunities we can grow our business together.”

Interested technology companies and VARs can contact VASCO’s U.S Sales Office at +1 508 366 34 00 or via e-mail at partner-[email protected] .

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]