F-Secure Corporation ANNOUNCEMENT 15.12.2010 SHARE REPURCHASE 15.12.2010 In the Helsinki Stock Exchange Trade date 15.12.2010 Bourse trade BUY Share FSC1V Amount 10.000 shares Total cost 20.190,00 EUR Average price/ share 2,019 EUR Highest price/ share 2,03 EUR Lowest price/ share 2,01 EUR F-Secure Corporation now holds a total of 3.241.913 shares including the shares repurchased on 15.12.2010. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen