With more than 30 years of operational and policy experience with IP addressing and Internet Governance, he has extensive experience in large-scale internet- working. Previous roles include Director for Internet Governance, Infrastructure and Cybersecurity at InterConnect Communications in the United Kingdom, and Consulting Resource Manager for Addressing, Naming and Protocol Issues at the Internet Assigned Numbers Authority (IANA). Since 2012, Mark has been a member of the UK delegation to the ITU’s Study Group on Security and has been the UK lead on Cloud Computing Security. Mark is an active contributor to work in the Internet Engineering Task Force (IETF) and ICANN, and he also is involved in the development of global internet security and addressing standards and policies. He is also a regular contributor to the work of the Regional Internet Registries, including serving as the Chair of the Address Supporting Organisation. Prior to working for IANA, Mark was the Senior Strategist for IP Addressing and Naming at BT for four years. Qualified as an ISO/IEC 27001 Architect, Mark has also taught in the Computer Science program at the University of Wisconsin in Milwaukee.