F-Secure Corporation STOCK EXCHANGE ANNOUNCEMENT 28.10.2010 SHARE REPURCHASE 28.10.2010 In the Helsinki Stock Exchange Trade date 28.10.2010 Bourse trade BUY Share FSC1V Amount 16.000 shares Total cost 34.552,08 EUR Average price/ share 2,1595 EUR Highest price/ share 2,17 EUR Lowest price/ share 2,15 EUR F-Secure Corporation now holds a total of 2.826.698 shares including the shares repurchased on 28.10.2010. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen