Subscription of F-Secure shares with F-Secure 1998 and 1999I warrants

Helsinki, Finland - April 11, 2002

A total of 47,180 F-Secure shares were subscribed for with the A warrants and 221,090 F-Secure shares with the B warrants attached to the F-Secure 1998 Warrant Plan. A total of 650,000 F-Secure shares were subscribed for with the C warrants attached to the F-Secure 1999I Warrant Plan. The issue of the 1998 and 1999I Warrant Plan was approved by the Annual General Meeting of April 30, 1998 and August 10, 1999, respectively.

In aggregate the number of shares was increased by 918,270. The corresponding increase in the share capital, in total EUR 9.182,70 was registered in the Finnish Trade Register on April 11, 2002. As a result of the increase, the share capital of F-Secure currently is EUR 1,430,792.78 and the total number of shares is 143,079,278. F-Secure received as additional shareholders' equity a total of EUR 370,240,33.

The holders of the new shares are entitled to all shareholders' rights from the registration date. The Company has submitted an application for the new shares to be listed on the Helsinki Exchanges together with the other Company shares. The trading with the new shares will commence on April 12, 2002.

The subscription period for the A warrants and B warrants of the F-Secure 1998 Warrant Plan began on 1 April 2000 and on 1 April 2001, and for the C warrants of the F-Secure 1999I Warrant Plan began on 1 August 2000, respectively.

F-Secure Corporation

Risto Siilasmaa
President & CEO

Additional information:
F-Secure Corporation
Risto Siilasmaa, President and CEO tel.358 9 2520 5510
Markku Pirskanen, CFO tel.358 9 2520 5606

DISTRIBUTION
Helsinki Exchanges
Main media