Stonesoft - Company Announcement

STONESOFT SELECTED AS A VENDOR IN A VERY SIGNIFICANT PROJECT

Stonesoft Corporation Stock Exchange Release February 17, 2012 at 12:00 p.m.

Stonesoft Corporation has been chosen as a vendor in the network security part
of a very significant public sector project. The value of the first order is EUR
0.4 million. Based on the company's estimate the order is the first part of a
significantly bigger delivery, the total value of which the company has at this
point estimated to be approximately EUR five (5) Million. Deliveries will be
made during this and next year."This order is a testimony of our long term work to develop our network security
offering", says Ilkka Hiidenheimo, CEO of Stonesoft Corporation.

Due to the timing of the deliveries over two years the company will not change
its previous future estimate according to which it aims for a minimum of 30%
growth of net sales and a positive result for the year 2012.

Stonesoft Corporation
Ilkka Hiidenheimo
CEO

The project is confidential and the company can not disclose further
information.

Distribution:
NASDAQ OMX Helsinki Ltd
www.stonesoft.com



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