This post explains how the AIS vessel tracking system works and how bad actors abuse the system.
Miao Shou, Gaute Friis | AUGUST 21, 2023
Miao Shou
Analyst
Gaute Friis
Analyst
Tracking vessels’ Automatic Information System (AIS) signals is a core means SeaLight and other open-source intelligence collectors use to monitor maritime activity. AIS is a broadcast system that maritime authorities use to identify a vessel’s unique identification number, type, position, course, speed and navigation status.
The International Maritime Organization (IMO) mandates the use of AIS to ensure maritime safety and direct marine traffic more efficiently. According to the International Maritime Organization’s International Convention for the Safety of Life at Sea (SOLAS) Regulation V/19.2.4, all vessels over 300 gross tons (or 500 tons for those not on international voyages) and passenger ships of any size are required to “carry automatic identification systems capable of providing information about the ship to other ships and to coastal authorities.”
CVD 