F-Secure Oyj

Transaction in Own Shares • Sep 28, 2009

Disclosure 272919

F-Secure Oyj - Changes in company's own shares

SHARE REPURCHASE 28.09.2009

SHARE REPURCHASE 28.09.2009 Helsinki Stock Exchange Trade date 28.09.2009 Bourse trade PURCHASE Share FSC1V Amount 12 000 shares Total cost 34 694,50 EUR Average price / share 2.8912 EUR Highest price / share 2.93 EUR Lowest price / share 2.86 EUR F-Secure Corporation now holds 1 146 681 shares including the shares repurchased on 28.09.2009. On behalf of F-Secure Corporation FIM Bank Ltd Antti Pajukka