STONESOFT CORPORATION STOCK EXCHANGE ANNOUNCEMENT Stonesoft Corp's Year 2006 Releases Stonesoft Corp. has published on its internet site a summary of the company's stock exchange releases and stock exchange announcements published during year 2006. The summary is available at: http://www.stonesoft.com/en/investor_relations/financial_information/stock_excha nge_releases/summaries/ Some of the information included in the releases might be out of date. Stonesoft Corp. Ilkka Hiidenheimo President and CEO Further information: Mikael Nyberg CFO tel. 4767 11 Distribution: Helsinki Stock Exchange Main media www.stonesoft.com