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

Helsinki, Finland, Jan 7, 2008 - (Hugin via ABN Newswire) - 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

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Stonesoft Oyj

http://www.stonesoft.com

ISIN: FI0009801302

Stock Identifier: XHEL.SFT1V

US: STNZF.PK