F-Secure's Anti-Virus for Firewalls and Anti-Virus for Internet Mail Is supported by StoneBeat® SecurityCluster(tm) from Stonesoft

Espoo, Finland - January 16, 2001

F-Secure Corporation [HEX: FSC], and Stonesoft Corporation [HEX:SFT1V] today announced that the StoneBeat SecurityCluster(tm), scalable load-balancing and highly available software, now supports F-Secure's Anti-Virus for Firewalls and Anti-Virus for Internet Mail.

SecurityCluster allows the continuous availability of the content scanning, by forming a scalable cluster of interconnected systems. The systems act as a single cluster, ensuring constant protection and eliminating downtime.

F-Secure Anti-Virus products provide defense against viruses and malicious code, ensuring system availability and data integrity. They provide tested, daily anti-virus updates that are delivered automatically and transparently to site-based and mobile workers.

Together, StoneBeat SecurityCluster and F-Secure Anti-Virus protect businesses and their mission-critical Internet operations from downtime.

Finnish software company Stonesoft is a leading supplier of software-based, scalable, high-availability solutions for Internet and e-commerce services. Its StoneBeat product family enables mission-critical operations on the Internet, and includes StoneBeat SecurityCluster.

F-Secure, a leading provider of security for mobile, distributed enterprises offers a full range of award-winning, integrated anti-virus, file encryption, distributed firewall and VPN solutions for workstations, servers, gateways and mobile devices. F-Secure products are uniquely suited for delivery of Security as a Service(tm), which provides invisible, reliable, continuous, and up-to-date security for the most widely distributed user base. Whether provided by corporate IT or delivered by service providers, F-Secure solutions extend policy-based security and instant alerts to all devices where information is created, stored or accessed.

End-users of F-Secure solutions include such prominent names as Yahoo, Amazon.com, Nokia, Ericsson, IBM, Cisco, and Siemens AG.

F-Secure's President and CEO, Risto Siilasmaa commented: "We are delighted to be able to offer F-Secure customers even better security through the integration of Stonesoft's StoneBeat SecurityCluster with our Antivirus products for Firewalls and Internet Mail. This forms a natural element of our 'Security as a Service' approach".

Jukka Tapaninen, Stonesoft'sVice President Marketing, added: ""Stonesoft sees this as another step toward our mission to provide high availability for all kinds of network soltuions. SecurityCluster already provides scalable high availability solutions for the industry's top security solutions, so Stonesoft is very happy to add F-Secure's products to this portfolio."

About StoneBeat SecurityCluster

StoneBeat SecurityCluster, as a part of the StoneBeat product family, addresses the five issues most critical to online operations - scalability, load balancing, fault tolerance, online maintenance and transparency. StoneBeat SecurityCluster enables constantly available virus protection, offering continuous protection.

Other products in the range are StoneBeat FullCluster for FireWall-1, StoneBeat FullCluster for Raptor, FullCluster for Gauntlet, StoneBeat HA for FireWall-1, StoneBeat WebCluster, StoneBeat CacheCluster and StoneBeat ServerCluster.

About Stonesoft Corporation

Stonesoft is a global Finnish software company with headquarters in Helsinki, Finland and Atlanta, Georgia. Stonesoft is the leading innovator and provider of software-based, high availability network security and e-business solutions for telecommunication companies, financial institutions, high volume Internet sites and large enterprises deploying Internet-based applications. Stonesoft's StoneBeat product line is the worldwide technology and market leader, being the only software product that combines dynamic load balancing and high availability for firewalls and other applications, such as web, cache, content scanning and DNS servers. Stonesoft has European offices in the United Kingdom, Germany, France, the Netherlands, Spain, Italy, Switzerland, Sweden and Norway; and in the Pacific Rim area in Singapore, Japan and Australia.