EARLIERTHIS YEAR, THE U.S. MARITIME Administration issued alerts reporting jammed GPS signals between the Republic of Cyprus and Port Said, Egypt, that affected multiple vessels and aircraft in the area. Last year, a number of reports noted instances of spoofing in the Black Sea, where GPS systems on vessels indicated they were sitting at a nearby airport. The non-profit Resilient Navigation and Timing Foundation research found instances of jamming and spoofing had happened to over 600 vessels over the last few years.
展开▼