Shape Security on Tuesday said that it has raised $40 million in venture funding to build out its product line, powered by its ShapeShifter polymorphic security appliance, and sales team. The funding was led by Norwest Ventures and Sierra Ventures joined. Existing Shape investors Kleiner Perkins Caufield & Beyers, Venrock, Google Ventures, Eric Schmidt’s TomorrowVentures and Allegis Capital also participated.