Prof. Keith Martin is a professor of information security at Royal Holloway, University of London and director of the EPSRC Centre for Doctoral Training in Cyber Security for the Everyday. He has broad research interests, with a focus on application of cryptography and geopolitical aspects of cyber security. Keith holds a degree in Mathematics from the University of Glasgow and a PhD from Royal Holloway. Following research positions at the University of Adelaide and the Katholieke Universiteit Leuven, Keith returned to Royal Holloway in 2000, where he co-created the successful distance learning MSc in Information Security, and served as Director of the Information Security Group from 2010 to 2015. Keith has over 100 research publications in cyber security, as well as articles in the popular and professional press. He is author of the text book Everyday Cryptography (OUP, 2012), now in its second edition, and the popular science book Cryptography: The Key to Digital Security, How it Works and Why it Matters (Norton, 2020). He has also presented courses on cyber security to a wide range of audiences, including specialist industrial short courses, the general public, and schools.