Private equity firm General Atlantic has purchased a 20 percent stake in Kaspersky Lab for $200 million. The deal shows that security technology companies are hot and it shows how much value Kaspersky has created in its 13 years as an antivirus software vendor, according to the newspaper Vedomosti (translated via Quintura).

General Atlantic bought the stake from Natalya Kaspersky, chairman and co-founder of Kaspersky Lab, which is based in Moscow. The company has more than 300 million users of its antivirus software and other security products. It adds more than 150,000 new users every day. Kaspersky Lab has more than 2,000 employees. General Atlantic will become the second-largest shareholder and will take a board seat. Eugene Kaspersky, chief executive, still owns 50 percent of the company.

The company reported revenue of $391 million in 2009 and its revenues grew an estimated 35 percent in 2009. The company is the No. 4 security software vendor, behind Symantec, McAfee and Trend Micro.

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