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

SHARE REPURCHASE 23.9.2011

F-Secure Corporation        ANNOUNCEMENT         23.9.2011
SHARE REPURCHASE 23.9.2011                                
In the Helsinki Stock Exchange                            
Trade date                          23.9.2011             
Bourse trade                BUY                           
Share                       FSC1V                         
Amount                                 10.000  shares     
Total cost                          19.270,00  EUR        
Average price/ share                   1,9270  EUR        
Highest price/ share                     1,95  EUR        
Lowest price/ share                      1,90  EUR        
F-Secure Corporation now holds a total of 3.837.198 shares
including the shares repurchased on 23.9.2011.            
On behalf of F-Secure Corporation                         
Nordea Bank Finland Plc                                   
Petri Simberg               Julius Summanen