John Heasman is the Director of Research at NGS Software. He has significant experience in vulnerability research and has released numerous advisories in enterprise-level software, including Microsoft Windows, Norton Antivirus, Exchange Server and PostgreSQL. His primary research interest is in rootkit and anti-rootkit technologies though he also has a strong interest in database security and was a co-author of the Database Hackers Handbook (Wiley, 2005). He holds a Masters degree in Engineering and Computing from Oxford University and is certified as a CHECK Team Leader allowing him to lead penetration tests of UK government systems.