F-Secure Oyj

Transaction in Own Shares • Dec 9, 2009

Disclosure 274484

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

SHARE REPURCHASE 09.12.2009

SHARE REPURCHASE 09.12.2009 Helsinki Stock Exchange Trade date 09.12.2009 Bourse trade PURCHASE Share FSC1V Amount 3 000 osaketta Total cost 7 980,00 EUR Average price / share 2.66 EUR Highest price / share 2.66 EUR Lowest price / share 2.66 EUR F-Secure Corporation now holds 1 464 788 shares including the shares repurchased on 09.12.2009. On behalf of F-Secure Corporation FIM Bank Ltd Antti Pajukka