F-Secure Oyj — Major Shareholding Notification 2011

Apr 26, 2011

Announcement pursuant to Securities Act Chapter 2, Section 10

Announcement pursuant to Securities Act Chapter 2, Section 10

F-Secure Corporation
April 26, 2011 at 15.30

Announcement pursuant to Securities Act Chapter 2, Section 10

F-Secure Corporation has today been informed by Varma that the holding of Varma
Mutual Pension Insurance Company in F-Secure has exceeded 5 % (1/20) and is
currently 5.2%.

1. The company: F-Secure Corporation

2. The date of change in holding: April 21, 2011

3. Exact proportion of voting rights and share capital in F-Secure Corporation:

Totally 8.206.472 shares, 5.2% of share capital and voting rights.

1. Shareholder's name and register number: Varma Mutual Pension Insurance
   Company, register number: 0533297-9

F-Secure Oyj
Taneli Virtanen
CFO

For more information, please contact:
F-Secure Corporation
Mervi Pohjoisaho, IR, tel. +358 40 535 8989