Nitesh Dhanjani is an information security consultant. He has performed network, application, web-application, wireless, source-code, host security reviews and security architecture design services for many of the Fortune 500 firms. He is the author of "HackNotes: Linux and Unix Security" and a contributing author for the best selling security book "Hacking Exposed 4". Nitesh graduated from Purdue University with both a Bachelors and Masters degree in Computer Science.Justin Clarke is a Manager in Ernst & Young's Rudolph W. Giuliani Advanced Security Center in New York. He has over 6 years of security experience in network, web application, source code and wireless testing work for some of the largest organizations in the United States. Prior to joining E&Y in the US, Justin did corporate and government security work in New Zealand. Justin is active in developing security tools for penetrating web applications, servers, and wireless networks and as a compulsive tinkerer he can't leave anything alone without at least trying to see how it works. Justin got his Bachelor's degree in Computer Science from Canterbury University in New Zealand.