"I know about 95 percent of [the vulnerabilities] I am going to find at a company before I even get there," said Ira Winkler, president of the Information Security Advisory Group -- a firm that specializes in penetrating business security systems to expose vulnerabilities -- and author of the book Corporate Espionage. "I can steal a billion dollars from any [corporation] within a couple of hours." [If he is THAT sure, you don't need to hire him. You know you are vulnerable, right? And I seriously doubt he can steal a BILLION dollars from ANY corporation.]