David Litchfield leads the world in the discovery and publication of computer security vulnerabilities. This outstanding research was recognised by Information Security Magazine who voted him as 'The World's Best Bug Hunter' for 2003. To date, David has found over 150 vulnerabilities in many of today's popular products from the major software companies (the majority in Microsoft, Oracle). David is also the original author for the entire suite of security assessment tools available from NGSSoftware. This includes the flagship vulnerability scanner Typhon III, the range of database auditing tools NGSSquirrel for SQL Server, NGSSquirrel for Oracle, OraScan and Domino Scan II. In addition to his world leading vulnerability research and the continued development of cutting edge security assessment software, David has also written or co-authored on a number of security related titles including, "SQL Server Security", "Shellcoder's handbook" and "Special Ops: Host and Network Security for Microsoft, UNIX and Oracle"