Traditional vessel tracking systems are becoming less reliable in a maritime environment increasingly shaped by electronic interference, dark fleet activity, and contested trade corridors.
The sea is no longer transparent
Until recently, modern maritime trade relied on a relatively simple assumption that ships could be tracked, identified, and monitored through standardized international systems. Increasingly, however, that assumption is breaking down. Across major shipping corridors, vessel operators are manipulating GPS signals, disabling transponders used to broadcast vessel locations, and obscuring cargo origins, while conflicts in regions such as the Red Sea and Strait of Hormuz are accelerating pressure on already fragile maritime routes.
New maritime risk data obtained by The Beiruter from maritime intelligence company Windward illustrates the scale of the disruption. In its Q1 2026 Maritime Risk Report, Windward found that transit traffic through the Strait of Hormuz fell 97% in March following the outbreak of conflict tied to Operation Epic Fury and the subsequent closure of the waterway by Iran’s Islamic Revolutionary Guard Corps. Average daily transits dropped from roughly 120 vessels to just 3.6, marking what Windward described as the largest shock to oil markets in more than half a century.
The figures point not only to growing instability at sea, but also to a broader transformation in how maritime activity is monitored. Traditional vessel tracking systems are becoming insufficient in an environment where ships can spoof locations, operate under false identities, or disappear from public tracking systems entirely. In response, maritime intelligence firms, governments, and security agencies are turning toward what Windward describes as “multi-source intelligence,” combining satellite imagery, radio frequency signals, shipping databases, sanctions records, and AI-assisted analysis to build a more comprehensive operational picture.
The Strait of Hormuz as a pressure point
Few waterways illustrate the stakes more clearly than the Strait of Hormuz. Roughly one-fifth of globally traded oil passes through the narrow corridor connecting the Persian Gulf to the Arabian Sea, making it one of the world’s most strategically sensitive maritime chokepoints.
According to Windward’s live Hormuz tracking platform, the effects of the recent Iran-related escalation extended well beyond simple vessel rerouting. Crude shipments bound west of Hormuz declined 87% during the disruption period, while dry bulk carrier transits through the strait fell 91%.
The data also revealed how rapidly regional supply chains attempted to adapt. Saudi crude exports departing from the Red Sea port of Yanbu rose 330% as exporters sought alternatives that bypassed Hormuz entirely. Rather than functioning as isolated shipping incidents, the disruptions triggered wider reconfiguration across regional maritime logistics.
At the same time, navigational interference intensified sharply. Windward recorded more than 1,100 vessels affected by GPS jamming during the quarter, while nearly 978,000 individual GPS jamming events were detected in Q1 2026. According to the company, 98% of these incidents were concentrated in the Gulf region, particularly during the first two weeks of the Iran conflict escalation.
The numbers highlight how modern maritime disruption increasingly extends beyond physical attacks on vessels themselves. Electronic interference, location manipulation, and signal degradation are becoming central tools in contested maritime environments.
Why traditional tracking no longer works
Much of global shipping still relies on the Automatic Identification System (AIS), a transponder-based tracking system that broadcasts a vessel’s location, speed, and identity to nearby ships and coastal authorities. Originally developed for navigational safety, AIS was not designed for modern sanctions evasion, covert maritime disruption, or sophisticated electronic interference.
As a result, ships engaged in illicit trade or operating in sanctioned networks increasingly exploit its weaknesses. Some vessels disable AIS entirely. Others manipulate transmitted coordinates, conceal cargo transfers, or repeatedly change national registration flags to complicate enforcement efforts.
Windward’s Q1 report documented a 26% decline in flag-hopping incidents compared to late 2025 peaks, but still identified 179 high-risk or sanctioned vessels that changed flags at least twice during the quarter. At the same time, the company tracked continued expansion of what it calls the “dark fleet,” referring to vessels associated with sanctions evasion or opaque shipping practices. Windward identified 2,108 such vessels globally in Q1 2026, an increase of 45 ships from the previous quarter, with nearly half already sanctioned.
These patterns are forcing maritime intelligence away from reliance on any single tracking source. In practice, the objective is no longer simply locating ships. It is determining whether vessels are behaving consistently with their declared identities and routes.
The rise of AI-supported maritime intelligence
The growing complexity of maritime monitoring is also accelerating the role of artificial intelligence within shipping intelligence systems. Rather than replacing analysts, AI tools are increasingly used to process enormous volumes of fragmented maritime data that would be difficult to interpret manually in real time.
Windward’s systems, for example, integrate live vessel feeds with sanctions databases, geopolitical risk indicators, cargo histories, and machine-learning models designed to identify suspicious behavior patterns. A vessel that suddenly changes course near sanctioned waters, transmits inconsistent GPS data, or repeatedly alters ownership structures may trigger elevated risk assessments even before authorities intervene.
Windward argues that the implications now extend far beyond commercial shipping. Governments increasingly rely on maritime intelligence systems to enforce sanctions and monitor strategic waterways, while insurers use them to assess conflict-related exposure and energy traders track potential supply disruptions. Navies, meanwhile, are becoming more dependent on commercial maritime data providers to supplement operational awareness.
The line between commercial shipping intelligence and national security infrastructure is therefore becoming increasingly blurred.
A more opaque maritime order
The expansion of maritime surveillance technologies also reflects a broader shift in the global trading environment. International shipping routes once associated primarily with efficiency and globalization are increasingly shaped by sanctions enforcement, geopolitical rivalry, and contested control over data itself
Windward’s Q1 report recorded a 160% increase in vessel interdictions compared to late 2025, with 13 ships boarded, detained, or intercepted during the quarter, accounting for half of all interdictions recorded across 2025 and early 2026 combined. At the same time, regulators issued 851 vessel designations tied to sanctions enforcement in Q1 alone.
The result is a maritime environment that is becoming simultaneously more monitored and more opaque. Ships generate enormous quantities of data, yet identifying what is genuine, manipulated, or deliberately concealed is becoming increasingly difficult. In that environment, maritime intelligence is no longer simply about tracking movement across open water. It is increasingly about interpreting fragmented signals within a contested information environment where visibility itself has become a strategic asset.
