F-Secure Corporation ANNOUNCEMENT 24.8.2011 SHARE REPURCHASE 24.8.2011 In the Helsinki Stock Exchange Trade date 24.8.2011 Bourse trade BUY Share FSC1V Amount 6.000 shares Total cost 12.090,00 EUR Average price/ share 2,0150 EUR Highest price/ share 2,02 EUR Lowest price/ share 2,00 EUR F-Secure Corporation now holds a total of 3.714.381 shares including the shares repurchased on 24.8.2011. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen