Stonesoft - Company Announcement

ADVANCE INFORMATION ON THE SALES OF STONEGATE(TM) PRODUCTS AND NET SALES OF THE FISCAL YEAR 2007

Based on the preliminary data the sales of StoneGate products during
the last quarter totalled EUR 3.6 million (EUR 2.3 million) and grew
by 59 % compared with the corresponding period in the previous year.
The sales of the StoneGate products during the last quarter were the
highest ever in the company's history. The previous all time high
level, reached during the second quarter in 2007, was exceeded by
roughly 34 %. On the annual level the positive sales trend of
StoneGate products was further strengthened in -2007. The annual
sales of StoneGate products were approximately EUR 10.6 million (EUR
8.3 million) and grew by 28 % compared to the previous year.

Based on the preliminary data the annual net sales of the company's
continuing operations in 2007 totalled as expected approximately EUR
19 million while the comparable net sales during the previous
financial year were 16.5 million euros. The growth compared to the
previous year was approximately 15 %. During the last quarter the net
sales of the company's continuing operations were approximately EUR
5.8 million (EUR 4.3 million) and grew by approximately 26 % compared
to the corresponding period in the previous year.

As the company has previously stated, significant variations of the
net sales and result between the quarters were expected. After weaker
than expected third quarter the company finds it necessary to give
advance information on the exceptionally strong growth in the sales
of the StoneGate products during the last quarter to ensure that the
market has a correct understanding of the development of the annual
sales of StoneGate products and the annual overall net sales.

The presented advance information is unaudited and it is not based on
a financial report approved by the Board of Directors.

Stonesoft will issue its Financial Statements for 2007 as informed
earlier, at February 15, 2008.


For additional information, please contact:
Ilkka Hiidenheimo, CEO, Stonesoft Corporation,
Tel. +358 9 476 711
E-mail: ilkka.hiidenheimo@stonesoft.com

Mikael Nyberg, CFO, Stonesoft Corporation
Tel. +358 9 476 711
E-mail: mikael.nyberg@stonesoft.com


Stonesoft Corp.
Ilkka Hiidenheimo
CEO


Distribution:
The Helsinki Stock Exchange
Main media
www.stonesoft.com