After obtaining a Ph.D in physics from Cambridge University, Robin Sharp has been working in the IT area since the early 1970s. He has many years experience in the design and analysis of computer networks, both at the academic level and in collaboration with industrial companies. He is currently an emeritus profesor at DTU Compute, the Department of Applied Mathematics and Computer Science at the Technical University of Denmark (DTU), where he has been employed since 1973.

He is the author of the book "Principles of Protocol Design" on network protocols, whose second edition was published by Springer Verlag in 2008. His book "What's Cybersecurity All About?", aimed at ordinary computer users, was published by Polyteknisk Forlag, the university publishers at DTU, in 2020.

Since the 1990s, the main focus of his work has been on security in networks and methods for secure design of computer systems. This has included work on aspects of human interaction with computer systems and its affect on cybersecurity. He has had the operative responsibility for IT security as CISO at DTU Compute.

Robin Sharp is an experienced teacher, having taught courses on computer security and network security since the middle 1990s, including a course for non-IT specialists, which has been an inspiration for the current book.