February 27, 2008

OAKBROOK TERRACE, Illinois and ZURICH, Switzerland – February 27, 2008 – VASCO Data Security International Inc. (Nasdaq: VDSI; www.vasco.com), a leading software security company specializing in strong authentication products, announced today that leading Japanese Mizuho Bank( www.mizuhobank.co.jp ) has chosen VASCO’s VACMAN Controller/Digipass GO6 strong authentication to protect its retail users’ assets.

Digipass GO 6 is a one-button Digipass authentication device, boasting functionalities such as one-time password authentication and host authentication. Digipass GO6 is future-proof, supporting the AES-algorithm. In addition, the product is ultra-portable, easy to deploy and to use.
Download pictures of Digipass GO6 at http://www.vasco.com/products/product.html?product=70 .

Mizuho Bank is one of Japan’s largest banks, with an important market share in the retail, corporate and local government segments. Mizuho Bank will offer VASCO’s VACMAN Controller and Digipass GO6 to protect the users of its “Mizuho Direct” retail Internet banking application.

“We are proud to welcome a high-ranking bank as Mizuho Bank amongst our customers,” said Jan Valcke, VASCO’s President and COO. “Mizuho is a leading bank in one of the leading IT-hubs in the world. We are honoured to contribute to our customer’s online success.”

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 6,500 companies in more than 100 countries, including approximately 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:
Jochem Binst, +32 2609 97 00, [email protected]