Subscription of F-Secure shares

A total of 131,190 F-Secure shares were subscribed for with the C warrants attached to the F-Secure 1998 Warrant Plan. A total of 30,598 F-Secure shares were subscribed for with the 2001B warrants, with the 2001D warrants and with the 2002B warrants attached to the F-Secure 1999 II Warrant Plan. The issue of the 1998 Warrant Plan was approved by the Annual General Meeting of April 30, 1998 and the issue of the 1999 II Warrant Plan was approved by the Annual General Meeting of August 10, 1999, respectively.

In aggregate the number of shares was increased by 161,788. The corresponding increase in the share capital, in total EUR 1,617.88 was registered in the Finnish Trade Register on January 12, 2005. As a result of the increase, the share capital of F-Secure currently is EUR 1,496,714.38 and the total number of shares is 149,671,438. F-Secure received as additional shareholders' equity a total of EUR 42,056.80.

The holders of the new shares are entitled to all shareholders' rights from the registration day. 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 13, 2005.

The subscription period for the C warrants of the F-Secure 1998 Warrant Plan began on 1 April 2002. The subscription period for the 2001B warrants began on 1 July 2002, for the 2001D warrants on 1 January 2003 and for the 2002B warrants on 1 July 2003 of the 1999 II Warrant Plan, respectively.

F-Secure Corporation

Risto Siilasmaa
President & CEO

Additional information:

F-Secure Corporation
Risto Siilasmaa, President and CEO    tel.358 9 2520 5510
Taneli Virtanen, CFO                         tel.358 9 2520 5655