GeoTrust’s Digital Signing Technology Chosen by
Unified Testing Initiative Members to Protect Mobile Java Applications

GeoTrust to Enable Trusted Distribution of Certified Mobile Java Applications

WELLESLEY, Mass.—July 26, 2004—GeoTrust, Inc., a leader in identity and security solutions for e-business and the world’s second largest certificate authority, today announced that it has been selected by the members of the Unified Testing Initiative (UTI) to provide digital signing services for ensuring trusted distribution of mobile Java applications under the Java Verified™ program. Digitally signing mobile applications will ensure the integrity of the application code and greatly reduce the risks of tampering once an application has been signed after testing.

Today, the demand to download Java-based applications that enable mobile phone users to instant message one another, view video news clips or play numerous games has never been higher. GeoTrust helps ensure the trusted distribution of these Java-based applications so mobile phone users know that applications are safe to run on their devices.

“The Unified Testing Initiative members are pleased to be working with GeoTrust on securing the growth of the mobile application market,” said Juan Dewar, senior director, Consumer and Mobile Systems Group, Sun Microsystems, Inc. “The continued, rapid, widespread adoption of mobile Java-based applications and the growth of the mobile industry on a global scale are dependent upon ensuring the integrity and security of the many applications on the market today and newer applications in the development phase.”

Wireless developers who wish to test their applications simply register at www.javaverified.com. Application testing is administered by selected test houses worldwide for application launch, user interface, functionality, security, network and localization capabilities.

Once Java applications have completed testing, a GeoTrust cryptographic digital signature is created for the application and appended to the distributed code. These digital signatures can be verified by anyone at any time, guaranteeing the integrity of the application code and that there have been no intentional or unintentional alterations of the application code.

Trusted distribution of Java technology-based mobile applications will allow developers to more efficiently market their applications. Upon certification, mobile network operators receive tested and signed applications, removing the need to do further testing, ensuring that handset providers can trust and reach a larger base of Java developers.

“Mobile devices today are used more and more like desktop computers and as the applications available to download become more sophisticated, ensuring the integrity of these applications and the carrier networks is paramount,” said Neal Creighton, president and CEO of GeoTrust. “GeoTrust is pleased to be working with Sun and the other UTI members on creating a trusted environment for downloading the next generation applications that will drive future growth of the mobile device market.”

About the Unified Testing Initiative (UTI)
The Unified Testing initiative (UTI) was established in June 2003 by members Motorola, Nokia, Sony Ericsson, Siemens and Sun Microsystems to help accelerate the availability of applications and services for Java™ technology-enabled wireless devices. The initiative has set common certification criteria for content testing that the members aim to make a symbol of consistent quality in the wireless industry. UTI testing for developers’ applications is currently managed through the supporting Java Verified program.

About the Java Verified ProgramSM
Launched in February, 2004, the Java Verified Program supports the goals set forth by the Unified Testing Initiative (UTI) and provides developers with the most effective way to test, promote and distribute mobile content to global end-users and subscribers. Developers whose applications successfully pass Java Verified testing can choose to participate in marketing and distribution programs offered by Motorola, Nokia, Orange, Siemens, Sony Ericsson, Sun Microsystems and T-Mobile-Europe. For more information, please visit www.javaverified.com.

About Sun Microsystems, Inc.
Since its inception in 1982, a singular vision—“The Network Is The Computer™”—has propelled Sun Microsystems, Inc. (Nasdaq: SUNW) to its position as a leading provider of industrial-strength hardware, software and services that make the Net work. Sun can be found in more than 100 countries and on the World Wide Web at http://sun.com.

About GeoTrust, Inc.
GeoTrust, Inc., a leader in Identity and Trust Services, helps organizations of all sizes secure e-commerce transactions, trusted identities and fully managed trusted environments for conducting e-business. GeoTrust’s Web Security Services offer hosting providers and businesses with world-class digital certificates for fast transaction security and patent-pending smart-seals to ensure a trusted identity on the Web. GeoTrust also offers managed security services for large enterprises. With more than 70,000 companies in over 140 countries using its technology for transaction security, GeoTrust is the second largest digital certificate provider in the world. GeoTrust can be reached at www.geotrust.com or 800-944-0492.

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GeoTrust is a registered trademark of GeoTrust, Inc. Enterprise SSL is a trademark of GeoTrust, Inc. All other product names are trademarks or registered trademarks of their respective owners.