F-Secure Oyj

Transaction in Own Shares • Dec 21, 2009

Disclosure 274782

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

SHARE REPURCHASE 21.12.2009

SHARE REPURCHASE 21.12.2009 Helsinki Stock Exchange Trade date 21.12.2009 Bourse trade PURCHASE Share 4 000 shares Total cost 11 310,00 EUR Average price / share 2.8275 EUR Highest price / share 2.83 EUR Lowest price / share 2.82 EUR F-Secure Corporation now holds 1 541 946 shares including the shares repurchased on 21.12.2009. On behalf of F-Secure Corporation FIM Bank Ltd Antti Pajukka