F-Secure Corporation STOCK EXCHANGE ANNOUNCEMENT 26.8.2010 SHARE REPURCHASE 26.8.2010 In the Helsinki Stock Exchange Trade date 26.8.2010 Bourse trade BUY Share FSC1V Amount 4.375 shares Total cost 9.342,00 EUR Average price/ share 2,1353 EUR Highest price/ share 2,14 EUR Lowest price/ share 2,12 EUR F-Secure Corporation now holds a total of 2.735.357 shares including the shares repurchased on 26.8.2010. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen