An IT industry veteran, with 20+ years of experience, Dr. Noah Schiffman is a former black-hat hacker turned security consultant. He spent almost a decade as a career computer hacker, performing penetration testing, social engineering, corporate espionage, digital surveillance, and other ethically questionable projects. Subsequently, he worked as a security consultant, teaching network defense, giving talks, and writing about information security. His past clients have consisted of Fortune 500 companies and various government agencies. For the past several years, his R&D efforts in the commercial and defense sectors have covered areas of data analysis and pattern recognition for security applications.