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

SHARE REPURCHASE 17.12.2010

F-Secure Corporation       ANNOUNCEMENT         17.12.2010
SHARE REPURCHASE 17.12.2010                               
In the Helsinki Stock Exchange                            
Trade date                        17.12.2010              
Bourse trade               BUY                            
Share                      FSC1V                          
Amount                                 9.000  shares      
Total cost                         18.240,00  EUR         
Average price/ share                  2,0267  EUR         
Highest price/ share                    2,04  EUR         
Lowest price/ share                     2,02  EUR         
F-Secure Corporation now holds a total of 3.256.913 shares
including the shares repurchased on 17.12.2010.           
On behalf of F-Secure Corporation                         
Nordea Bank Finland Plc                                   
Petri Simberg              Julius Summanen