Data Fellows seeks advice on possible listing

Espoo, Finland, June 23, 1999 -- Data Fellows, one of the world's leading developers of data security products, today announces that it has appointed BancBoston Robertson Stephens and Enskilda Securities to jointly advise on the broadening of its shareholder base and the possible public listing of its shares.

The Company offers integrated solutions for enterprise security by developing, marketing and supporting anti-virus, data security and cryptography software products for corporate computer networks. At the core of the Data Fellows value proposition is the F-Secure Framework, a three-tier security and management architecture. It allows automated, gradual deployment and policy-based administration of F-Secure products and select third party applications from one centralized management console. The groundbreaking F-Secure product family is a unique combination of globally available strong encryption and revolutionary anti-virus software.

The information contained herein is not for release, publication or distribution in or into the United States of America, its territories or possessions. The securities of Data Fellows have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or the laws of any state, and may not be registered or sold within the United States or to U.S. persons (as defined in Regulation S under the Securities Act), except pursuant to an exemption from, or in a transaction subject to, the registration requirements of the Securities Act and applicable state laws.