Joel Scambray, CISSP , is Chief Strategy Officer at Leviathan Security Group (leviathansecurity.com). His nearly 15 years of information security experience encompasses roles as a corporate leader (senior management positions at Microsoft and Ernst & Young), entrepreneur (co-founder of Foundstone), successful technical consultant for Fortune 500 firms, and internationally recognized speaker and author of multiple security books, including all five editions of Hacking Exposed: Network Security Secrets & Solutions . Stuart McClure, CISSP , an independent computer security consultant, is one of today's leading authorities on information security. He was SVP of Global Threats and Research for McAfee where he led an elite global security team fighting the most vicious cyber attacks ever seen. Stuart is the coauthor of multiple security books, including all five editions of Hacking Exposed: Network Security Secrets & Solutions .