F-Secure Oyj

Transaction in Own Shares • Dec 18, 2009

Disclosure 274738

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

SHARE REPURCHASE 18.12.2009

SHARE REPURCHASE 18.12.2009 Helsinki Stock Exchange Trade date 18.12.2009 Bourse trade PURCHASE Share 8 500 shares Total cost 23 955,00 EUR Average price / share 2.8182 EUR Highest price / share 2.84 EUR Lowest price / share 2.81 EUR F-Secure Corporation now holds 1 537 946 shares including the shares repurchased on 18.12.2009. On behalf of F-Secure Corporation FIM Bank Ltd Antti Pajukka