Spam filtering company Barracuda Networks has bought web firewall vendor, NetContinuum to offer protection to website owners as well as web users.

Barracuda concluded the purchase in mid-August, but it was not publicly disclosed at the time, said Dean Drako, the company's president and CEO. Drako would not say what Barracuda paid for NetContinuum.

The deal gives Barracuda a new type of appliance to sell along side its existing lines of appliances, Drako said. "We believe there's an opportunity to bring website protection to a very broad audience of our customer base," he said.

Barracuda plans to improve the NetContinuum user interface and eventually sell the appliances as the Barracuda Web App Controller, he said. "We are investing really heavily in making this a really great product."

NetContinuum had offices in Santa Clara and India, but the Santa Clara team has already been moved to Barracuda's Campbell, California, headquarters. Barracuda is expanding the team in India and expects to make only "one or two" layoffs as a result of the acquisition, he said.