Ships Disguise as Chinese to Avoid Iran Attacks in Gulf | GPS Signal Manipulation
Ships traversing the Gulf and surrounding waters are increasingly employing deceptive tactics to avoid potential attacks, according to recent reports. These tactics involve disguising vessel identification signals, specifically altering the automatic identification device (AIS) data to suggest Chinese ownership or crew.
The Financial Times reported on , that analysis of maritime traffic data revealed at least ten ships altered their AIS destination signals over the past week. These signals were modified to include phrases such as “Chinese shipowner,” “all Chinese crew,” and “Chinese crew on board.” This practice highlights the growing anxiety among shipping companies navigating these volatile waters.
The situation is compounded by a significant number of vessels currently stranded in the region. Lloyd’s Markets Association estimates approximately 1,000 ships are currently awaiting passage in the Gulf and nearby areas. Iran has been implicated in attacks targeting civilian ships, not only within the Strait of Hormuz but also in waters near Kuwait, further escalating tensions and prompting these defensive measures.
The ship’s transponder, or Automatic Identification System (AIS), is a crucial safety tool. Primarily managed by the captain, it broadcasts information about the vessel – its identity, position, course, and speed – to nearby ships, preventing collisions. The destination field within this system, however, is readily modifiable, creating an opportunity for deception.
The vessels employing these altered signals represent a diverse range of cargo carriers, including container ships and oil tankers, encompassing both fully loaded and empty vessels. One example cited is the ‘Iron Maiden,’ which briefly displayed a “Chinese Shipowner” signal while transiting the Strait of Hormuz on , before reverting to its original signal upon reaching waters near Oman. Another instance involved the fuel tanker ‘Bogazici,’ which temporarily identified itself as “Muslim Ship Türkiye” while crossing the Strait of Hormuz on , restoring its original identification once it reached safer waters.
Beyond altering AIS data, some vessels are also utilizing techniques to manipulate GPS signals, potentially disrupting weapons guidance systems. This manipulation results in discrepancies in tracking data, with ships appearing to occupy multiple locations simultaneously – even appearing to be positioned at airports or nuclear power plants, as reported by CNN. This phenomenon, confirmed in the Gulf, involves both jamming (disrupting satellite signals) and spoofing (transmitting false location data).
Shipping data platform Kepler’s analyst, Matthew Wright, described this as a “form of deception,” noting that seafarers are attempting to obscure their connection to specific ports, destinations, or nationalities. He further explained that this practice initially emerged in the Red Sea in 2023, following attacks on commercial shipping by Yemen’s Houthi rebels. The clustering of ships on shipping data platforms, appearing to occupy the same location, is a visual indicator of this GPS manipulation.
While it remains unclear whether Iranian military forces or affiliated groups are specifically treating vessels claiming Chinese affiliation differently, the Financial Times reports that seafarers are demonstrably willing to take any available measure to mitigate the risk of being targeted. This underscores the heightened level of concern and the proactive steps being taken to ensure vessel safety.
The surge in GPS interference, particularly around the Strait of Hormuz, poses a significant risk to maritime navigation. France24 reported on , that when GPS signals are compromised, ships effectively lose their ability to navigate accurately. This deliberate manipulation of satellite navigation signals, known as GNSS spoofing, has been confirmed in the Gulf region.
The disruption of marine traffic through the Strait of Hormuz, a critical waterway handling roughly 20% of the world’s oil and gas exports, is particularly concerning. Precise navigation is essential in this congested shipping lane, and the current interference has slowed traffic and led to insurers dropping maritime coverage for some vessels. The situation has deteriorated to the point where traffic through the Strait has nearly ground to a halt, with vessels facing attacks and increased insurance risks.
Michelle Wiese Bockmann, a senior maritime intelligence analyst at Windward, emphasized the danger, stating, “What we’re seeing in the Middle East Gulf at the moment, is extremely dangerous for maritime navigation.” The combination of GPS interference, physical attacks, and insurance complications creates a complex and precarious environment for shipping operations in the region.
The use of these deceptive practices highlights the escalating tensions in the region and the lengths to which shipping companies are going to protect their vessels and crews. While the effectiveness of these tactics remains uncertain, they represent a clear indication of the heightened risk and the proactive measures being taken in response.