David is a mobile phone security expert who runs Copper Horse Solutions Ltd, a software and security company currently focusing on IoT security research and products, based in Windsor, UK. He also chairs the Device Security Group at the GSM Association and teaches the Mobile Systems Security course at the University of Oxford. He has worked in the mobile industry for over 16 years in security and engineering roles. Prior to this he worked in the semiconductor industry. His book ‘Mobile Security: A Guide for Users’ was published in 2013.

David holds an MSc in Software Engineering from the University of Oxford and a HND in Mechatronics from the University of Teesside.