EXCHANGE NOTICE 9/2007, 8 JANUARY 2007 SHARES F-SECURE CORPORATION: SUBSCRIPTION OF SHARES WITH WARRANTS A total of 93 600 F-Secure Corporation's shares have been subscribed with the A1/A2 and B1/B2/B3 warrants attached to the F-Secure 2002 Warrant Plan. The shares will be traded on the Helsinki Stock Exchange as old shares as of 9 January 2007. Identifiers of F-Secure Corporation's share: Trading code: FSC1V ISIN code: FI0009801310 Orderbook id: 24270 Number of shares: 155 030 068 HELSINKI STOCK EXCHANGE Janne Seppänen Head of Surveillance