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

Helsinki, Finland - January 21, 2002

A total of 14,240 F-Secure shares were subscribed for with the A warrants attached to the F-Secure 1998 Warrant Plan. A total of 25,000 F-Secure shares were subscribed for with the B warrants and 50,000 F-Secure shares with 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 89,240. The corresponding increase in the share capital, in total EUR 892,40 was registered in the Finnish Trade Register on January 17, 2002. As a result of the increase, the share capital of F-Secure currently is EUR 1,421,610.08 and the total number of shares is 142,161,008. F-Secure received as additional shareholders' equity a total of EUR 40,819.

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 January 18, 2002.

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