Bill Woodcock is the executive director of Packet Clearing House, the international non-governmental organization that builds and supports critical Internet infrastructure, including Internet exchange points and the core of the domain name system. Bill has helped establish more than two hundred Internet exchange points. In 1989, Bill developed the anycast routing technique that now protects the domain name system. Bill was principal author of the Multicast DNS and Operator Requirements of Infrastructure Management Methods IETF drafts. And in 2007, Bill was one of the two international liaisons deployed by NSP-Sec to the Estonian CERT during the Russian cyber-attack. Now, Bill’s work focuses principally on the security and economic stability of critical Internet infrastructure.