Stonesoft Corporation Stock Exchange Release March 30, 2012 at 2:00 p.m.

STONESOFT'S ANNUAL REPORT 2011 HAS BEEN PUBLISHED

Stonesoft Corporation's Annual Report 2011 has been published in PDF format. The Annual Report is available in English and Finnish at the company's website http://www.stonesoft.com/Investor Relations.

The Annual Report includes the Board of Directors' Report, the Financial Statements, the Auditor's Report and the Corporate Governance Statement.

Stonesoft's Corporate Governance Statement 2011 is also available separately at the company's website www.stonesoft.com/Investor Relations/Corporate Governance.

Stonesoft Corporation

Ilkka Hiidenheimo
Chief Executive Officer

For further information, please contact:
CFO Mikael Nyberg, Stonesoft Corporation
Tel. +358 9 4767 11

Distribution:
NASDAQ OMX Helsinki Ltd
www.stonesoft.com

Corporate Governance Statement:
http://hugin.info/120212/R/1598770/504229.pdf
Stonesoft Annual Report 2011:
http://hugin.info/120212/R/1598770/504230.pdf


This announcement is distributed by Thomson Reuters on behalf of Thomson Reuters clients.

The owner of this announcement warrants that:
(i) the releases contained herein are protected by copyright and other applicable laws; and
(ii) they are solely responsible for the content, accuracy and originality of the
information contained therein.

Source: Stonesoft Oyj via Thomson Reuters ONE
HUG#1598770