Notification in accordance with the Finnish Securities Market Act Chapter 9, Section 5

| Source: F-Secure Oyj F-Secure Oyj

F-Secure Corporation, January 12, 2015 at 14.00

F-Secure Corporation has today been informed by Mandatum that the holding of Mandatum Life Insurance Company Limited in F-Secure has fallen below 5% (1/20) and is currently 4.94%, after being, on the basis of their previous announcement, 5.51% on September 3, 2013.

1. The company: F-Secure Corporation

2. The date of change in holding: January 9, 2015

3. Exact proportion of voting rights and share capital in F-Secure Corporation: Totally 7,839,271 shares, 4,94% of share capital and voting rights.

4. Shareholder's name and register number: Mandatum Life Insurance Company Limited, register number: 0641130-2


F-Secure Oyj

Taneli Virtanen
CFO
tel. +358 40 752 0655