VASCO and AET join forces and rally their knowledge into a concerted PKI product

   VASCO and AET join forces and rally their knowledge into a concerted PKI
                                   product

PR Newswire

OAKBROOK TERRACE, Ill., and ZURICH, June 12, 2013

OAKBROOK TERRACE, Ill., and ZURICH, June 12, 2013 /PRNewswire/ -- VASCO Data
Security International, Inc. (Nasdaq: VDSI); (www.vasco.com), a leading
software security company specializing in authentication products, announces
that it joins forces with the Dutch company A.E.T. Europe B.V.; (AET), market
leader in strong authentication with cryptographic tokens and Digital ID
Management, to approach the market with a concerted product.

The Dutch company AET, headquartered in Arnhem and founded in 1998, is
committed to IT security. AET offers its customers ingenious solutions based
on worldwide accepted standards for e-commerce and information security, by
developing cryptographic middleware and card management systems. The company
is particularly specialized in PKI (Public Key Infrastructure) products.

AET's PKI technology, SafeSign Identity Client, will be integrated into
VASCO's DIGIPASS Key product line. The SafeSign IC middleware is designed to
integrate digital signature tokens into numerous certificate-enabled
applications in order to provide secure two-factor authentication on all major
platforms. The combination of SafeSign IC middleware with DIGIPASS KEY enables
pre-boot authentication with third party software solutions while offering all
benefits of certificate-based authentication with the simplicity and
portability of a built-in USB reader.

In general, a computer's booting system is protected by a static password
during the pre-boot. However, DIGIPASS KEY with AET's middleware can offer
more security thanks to PKI technology with certificates, offering full disk
encryption of temporary files and outside the operating system level.

This partnership will be offered in different markets and regions worldwide,
hence broadening and strengthening AET's and VASCO's position in the market.
As of June, enterprises and banks can opt for this joint technology for
document signing, encrypting and signing e-mails or two-factor authentication.

"A partnership between VASCO and AET was just self-evident, because VASCO and
AET are so complementary." explains Reinoud Weijman, CEO of AET. "AET is
strong in large scale PKI deployments, while VASCO is strong in large scale
OTP deployments. We have known each other for years and we are happy that we
can work together in this joint project. I truly believe that this partnership
between VASCO and AET can reinforce the technology and solutions we bring to
the authentication market."

"AET and VASCO have worked together for quite some time, so it was indeed the
logical next step as both companies are specialized in authentication," says
Jan Valcke, COO and president of VASCO Data Security. "We are looking forward
to target the market with this joint technology and we are sure that
enterprises and banks will be happy to secure their critical data even more
with the PKI technology."

VASCO will be present at the CIAB tradeshow at Transamérica Expo Center in Sao
Paulo, Brazil, booth F21.

About AET:
The Dutch company A.E.T. Europe B.V. (AET), headquartered in Arnhem and
founded in 1998, is committed to IT security. AET offers its customers
ingenious solutions based on worldwide accepted standards for e-commerce and
information security. AET is setting new standards in the crucial business
area of developing middleware for smart cards and USB tokens with its SafeSign
Identity Client. Another of AET's bestsellers its BlueX Digital ID Management.
This well-known and adaptable system supports the simplification and
automation of individual steps for the digital ID management process.

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 global software company for Internet Security
serving a customer base of approximately 10,000 companies in more than 100
countries, including approximately 1,700 international financial institutions.
VASCO's prime markets are the financial sector, enterprise security,
e-commerce and e-government. VASCO's products and services are delivered on
the customers' premises or in the cloud.

Forward Looking Statements:
Statements made in this news release that relate to future plans, events or
performances are forward-looking statements. These forward-looking statements
(1) are identified by use of terms and phrases such as "expect", "believe",
"will", "anticipate", "emerging", "intend", "plan", "could", "may",
"estimate", "should", "objective" and "goal", "possible", "potential", and
similar words and expressions, but such words and phrases are not the
exclusive means of identifying them, and (2) are subject to risks and
uncertainties and represent our present expectations or beliefs concerning
future events. VASCO cautions that the forward-looking statements are
qualified by important factors that could cause actual results to differ
materially from those in the forward-looking statements. These risks,
uncertainties and other factors have been described in greater detail in the
Annual Report on Form 10-K for the fiscal year ended December 31, 2010 filed
with the Securities and Exchange Commission and include, but are not limited
to, (a) risks of general market conditions, including currency fluctuations
and the uncertainties in world economic and financial markets, (b) risks
inherent to the computer and network security industry, including rapidly
changing technology, evolving industry standards, increasing numbers of patent
infringement claims, changes in customer requirements, price competitive
bidding, and changing government regulations, and (c) risks specific to VASCO,
including, demand for our products and services, competition from more
established firms and others, pressures on price levels and our historical
dependence on relatively few products, certain suppliers and certain key
customers. Reference is made to VASCO's public filings with the U.S.
Securities and Exchange Commission for further information regarding VASCO and
its operations.

This document may contain trademarks of VASCO Data Security International,
Inc. and its subsidiaries, including VASCO, the VASCO "V" design, DIGIPASS,
VACMAN, aXsGUARD and IDENTIKEY.

For more information contact: Jochem Binst, +32 2 609 97 00, jbinst@vasco.com

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SOURCE VASCO Data Security International, Inc.

Website: http://www.vasco.com