F-Secure Oyj - Corporate Action

Subscription of F-Secure shares with F-Secure 2005 warrants

F-SECURE CORPORATION    STOCK EXCHANGE RELEASE      May 24, 2011     am 11.15

Subscription of F-Secure shares with F-Secure 2005 warrants

A total of 45,000 F-Secure shares were subscribed for with the C warrants
attached to the F-Secure 2005 Warrant Plan. The issue of the 2005 Warrant Plan
was approved by the Annual General Meeting on March 23, 2005. 

In aggregate the number of shares was increased by 45,000, which was registered
in the Finnish Trade Register on May 24, 2011. F-Secure received as
subscription price a total amount of EUR 66,600.00, which will be recorded in
the fund for company's distributable equity. As a result of the registering the
total number of shares is 157,870,136. 

The holders of the new shares are entitled to all shareholders' rights from the
registration day. The Company has submitted an application for the new shares
to be listed on the Helsinki Exchanges together with the other Company shares.
The trading with the new shares will commence on May 25, 2011. 

The subscription period for the 2005 C warrants began on March 1, 2010.


F-Secure Corporation

Taneli Virtanen
CFO

Additional information:

F-Secure Corporation
Taneli Virtanen, CFO                tel. 358 9 2520 5655

DISTRIBUTION
Helsinki Exchanges
Main media