Thompson states that a company must never stop spending, even in challenging times. As Symantec entered the challenging 2001, the problem was about the cost of owning and operating the security infrastructure that customers had deployed around the world, he says. Customers had no way to measure the effectiveness of the technology they deployed so Symantec spent 15-16% of revenues to build a portofolio of tools that are now the model for how security ought to be done.