Check Point Software Technologies plans to buy Zone Labs, which makes security software for desktops, for $205 million, an effort to broaden its product line.

Check Point also hopes the acquisition will help it better position itself competitively through diversification. Security companies previously had only specialized in a few products. Now most are trying to sell a broad array of products that will work in concert. Symantec for instance, bought two software companies specializing in management tools that, over time, will make it easier for customers to update their security systems.

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