F-Secure Corporation STOCK EXCHANGE ANNOUNCEMENT 18.6.2010 SHARE REPURCHASE 18.6.2010 In the Helsinki Stock Exchange Trade date 18.6.2010 Bourse trade BUY Share FSC1V Amount 13.135 shares Total cost 28.242,73 EUR Average price/ share 2,1502 EUR Highest price/ share 2,19 EUR Lowest price/ share 2,13 EUR F-Secure Corporation now holds a total of 2.406.841 shares including the shares repurchased on 18.6.2010. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen