John Yaldwyn is Chief Technology Officer and founder of 4RF. John focuses on the security and technical considerations of radio technology for critical infrastructure applications. A graduate of Victoria University of Wellington, he has a science degree and has done post graduate study in France at École Nationale Supérieure des Télécommunications. He is a member of the Victoria’s Engineering Faculty Advisory Board. Previously John was with the government science entity DSIR and then worked at MAS Technology when the company became the first New Zealand technology company to list on the NASDAQ.