F-Secure Corporation ANNOUNCEMENT 26.9.2011 SHARE REPURCHASE 26.9.2011 In the Helsinki Stock Exchange Trade date 26.9.2011 Bourse trade BUY Share FSC1V Amount 7.000 shares Total cost 13.370,00 EUR Average price/ share 1,9100 EUR Highest price/ share 1,94 EUR Lowest price/ share 1,89 EUR F-Secure Corporation now holds a total of 3.844.198 shares including the shares repurchased on 26.9.2011. On behalf of F-Secure Corporation Nordea Bank Finland Plc Petri Simberg Julius Summanen