David M. currently serves as the Head of Cyber Security at Sellafield Ltd since January 2024. Prior to this role, David held multiple senior positions at the UK Home Office, including Head of Cyber Security Operations and Head of Cyber Strategy from February 2021 to January 2024. David also served as the Chief Information Security Officer at the Foreign and Commonwealth Office from December 2018 to February 2021. Earlier in career, David worked for the UK Civil Service in various roles from November 2011 to December 2018 and as a Research Analyst at the National Foundation for Educational Research from September 2008 to September 2010.