Mr. Contos has over 15 years of security engineering and management expertise. He has worked throughout North and South America, Europe, the Middle East, and Asia. At McAfee he advises government organizations and G2000s on security strategy. He has written two books including Enemy at the Water Cooler – Real Life Stories of Insider Threats, and Physical and Logical Security Convergence which he co-authored with former NSA Deputy Director William Crowell. He has delivered speeches at industry events like RSA, Interop, OWASP, CSI, ISACA, ISSA, InfraGard and eCrime. He is often quoted by business and industry press, and has written articles for Forbes, NY Times, London Times, Computerworld, and many others. He was formerly the Chief Security Strategist for Imperva, the Chief Security Officer for ArcSight, and has held management and engineering positions at Riptech, Bell Labs, Tandem Computers, and DISA.