Ryan Heartfield is a postdoctoral Research Fellow in cybersecurity in the IoT and Security (ISEC) research group at the University of Greenwich, UK. He has led R&D in multiple national and international research projects, focusing on artificial intelligence in cybersecurity and cyber-physical intrusion detection. Currently, Dr. Heartfield is leading work in developing social media information trustworthiness tools for the EUNOMIA project. His research in defining the human-as-a-security-sensor paradigm has gained both academic and industrial recognition. Dr. Heartfield earned a PhD in cybersecurity from the University of Greenwich. He can be reached at R.Heartfield@greenwich.ac.uk.