Palo Alto Networks Raises $18 Million

Palo Alto Networks Inc., an Alviso, Calif.-based enterprise network security company, has raised $18 million in Series B funding, according to VentureWire. Globespan Capital Partners led the deal, and was joined by return backers Greylock Partners and Sequoia Capital. It has raised $28 million in total VC funding. www.paloaltonetworks.com