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

SHARE REPURCHASE 5.9.2011

F-Secure Corporation        ANNOUNCEMENT          5.9.2011
SHARE REPURCHASE 5.9.2011                                 
In the Helsinki Stock Exchange                            
Trade date                            5.9.2011            
Bourse trade                BUY                           
Share                       FSC1V                         
Amount                                   3.100  shares    
Total cost                            6.258,00  EUR       
Average price/ share                    2,0187  EUR       
Highest price/ share                      2,04  EUR       
Lowest price/ share                       2,01  EUR       
F-Secure Corporation now holds a total of 3.748.981 shares
including the shares repurchased on 5.9.2011.             
On behalf of F-Secure Corporation                         
Nordea Bank Finland Plc                                   
Petri Simberg               Julius Summanen