Gary Kessler, Ph.D., CISSP, is a principal consultant at Fathom5 and president of Gary Kessler Associates (Ormond Beach, Florida), a consulting, research, and training company specializing in maritime cybersecurity, digital forensics, and network protocols. He is also co-author of Maritime Cybersecurity: A Guide for Leaders and Managers, 2nd ed., a Non-Resident Senior Fellow at the Atlantic Council, and a retired professor of cybersecurity. Gary has been involved in the information security field since the late-1970s; his latest research efforts have been related to AIS security. He is a member of the U.S. Coast Guard Auxiliary, where he holds a national-level cybersecurity office, is active in National Marine Electronics Associates (NMEA) standards development, is a SCUBA instructor, and holds a 50 GT merchant mariner credential. More information can be found at https://www.garykessler.net.