F-Secure Corporation STOCK EXCHANGE ANNOUNCEMENT 9.12.2010 SHARE REPURCHASE 9.12.2010 In the Helsinki Stock Exchange Trade date 9.12.2010 Bourse trade BUY Share FSC1V Amount 17.228 shares Total cost 34.972,84 EUR Average price/ share 2,0300 EUR Highest price/ share 2,03 EUR Lowest price/ share 2,03 EUR F-Secure Corporation now holds a total of 3.198.118 shares including the shares repurchased on 9.12.2010. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen