Information technology leader with over 15 years of experience in government, the private sector and higher education. Subject matter expert in information security and IT compliance. Author of 15 books, including the CISSP Study Guide (six editions), Cyberwarfare: Information Operations in a Connected World, Security+ Training Kit, Information Security Illuminated, and SQL Server 2008 for Dummies. Technical editor for Information Security Magazine, regular contributor to SearchSecurity.com and About.com Guide to Databases.