F-SECURE CORPORATION STOCK EXCHANGE RELEASE Translation from Finnish January 8, 2007 Subscription of F-Secure shares with F-Secure 2002 warrants A total of 51,900 F-Secure shares were subscribed for with the A1/A2 warrants and a total of 41,700 F-Secure shares were subscribed for with the B1/B2/B3 warrants attached to the F-Secure 2002 Warrant Plan. The issue of the 2002 Warrant Plan was approved by the Annual General Meeting on March 27, 2002, respectively. In aggregate the number of shares was increased by 93,600. The corresponding increase in the share capital, in total EUR 936.00 was registered in the Finnish Trade Register on January 8, 2007. As a result of the increase, the share capital of F-Secure currently is EUR 1,550,300.68 and the total number of shares is 155,030,068. F-Secure received as additional shareholders' equity a total of EUR 68,670. 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 9, 2007. The subscription period for the A1 warrants began on November 1, 2003, for the A2 and B1 warrants on November 1, 2004, for the B2 warrants on November 1, 2005 and for the B3 warrants on November 1, 2006 of the F-Secure 2002 Warrant Plan, respectively. F-Secure Corporation Taneli Virtanen CFO Additional information: F-Secure Corporation Taneli Virtanen, CFO tel.358 9 2520 5655 DISTRIBUTION Helsinki Exchanges Main media