Contributed Article
by Pete Harvey, Senior Product Supervisor Subsea, Starboard Maritime Intelligence
When Starboard printed Cable Danger Intelligence 2026 (Situation 1) in April, the Persian Gulf scored 4.6 out of 5.0 on our danger index, the very best of the 25 cable touchdown zones we assessed globally. On the time, that score was grounded in a mix of geopolitical stress, excessive site visitors density, constrained restore entry, and documented vessel behaviour round cable routes within the area.
Since then, the state of affairs has deteriorated additional. Iran has explicitly threatened to sever submarine cables within the Strait of Hormuz as a part of the 2026 battle, with state media circulating maps of Gulf undersea cable routes. At the very least 17 cable techniques transit the Purple Sea and Persian Gulf, carrying the vast majority of knowledge site visitors between Asia and Europe. Cable building work throughout the Gulf has come to a standstill as a result of restore ships can’t function in energetic battle zones.
The Persian Gulf score was a forecast of the circumstances which have now materialised.
The window of alternative
Most operators discover out a cable is in danger by a service degradation report from a buyer, an optical monitoring alarm, or a restore dispatch. By the point any of these indicators hearth, the cable is already reduce, and the restore window begins. Below regular circumstances, that window averages 40 days for a deepwater fault. In a battle zone there’s no definitive finish.
The answer is to collate and analyse the chance knowledge inside the prevention window, giving operators an opportunity to intervene earlier than a cable is struck.
Whether or not unintended or deliberate, each cable incident is preceded by vessel behaviour that’s detectable earlier than harm happens. An anchor drag begins as a vessel drifting over a identified route. A trawler working a protected zone slows to trawling pace earlier than it makes contact. A vessel executing a deliberate act loiters, modifications course with out obvious function, or goes darkish in a delicate space. When you’re searching for them in the appropriate approach with the appropriate instruments, these patterns could be seen within the knowledge earlier than the fault occasion.
Early detection in observe
Starboard fuses AIS, satellite tv for pc knowledge, fibre sensing (DAS and SoP), and bathymetry right into a single operational view, then applies behavioural fashions to flag when vessel exercise close to a cable route deviates from established patterns. The output is a prioritised alert with sufficient vessel knowledge for a Marine Operations Centre or an operator to behave.
In a New Zealand cable safety trial performed with the New Zealand Authorities, industrial cable homeowners, and a marine operations centre, this method generated 86 alerts, prompted 17 VHF vessel calls, and resulted in three vessels altering course, none of which required ready for a fault sign.
When Starboard’s vessel danger alerts are built-in immediately right into a service’s NOC software program, response time drops from 25 minutes to three. The compressed timeline from sign to motion is the place harm is prevented.
Hormuz
The occasions of 2026 have clarified that ambiguity is itself a menace vector. When a vessel drags anchor over a cable, attribution is unsure. When a sanctioned vessel transits a cable hall slowly and with out AIS, intent is unclear. When a cable is reduce in or close to a battle zone, the road between accident and deliberate act is troublesome to ascertain, and troublesome to behave on legally or operationally.
Starboard’s behavioural fashions are designed to supply data, readability, and clarification that make clear the challenges. They flag deviations from established site visitors patterns even when AIS knowledge is absent or inconsistent, and correlate vessel exercise with identified danger indicators to ship an assessed image relatively than a uncooked knowledge feed.
That is the working setting the Submarine Networks EMEA and Subsea Safety Summit communities are navigating in 2026. The know-how to detect threatening behaviour earlier than it causes harm exists in the present day. The query is whether or not it’s built-in into the operational workflows of the groups who want it.
Learn the total danger index
Cable Danger Intelligence 2026 (Situation 1) covers 25 cable touchdown zones throughout the Baltic, Purple Sea, Taiwan Strait, North Sea, Persian Gulf, and trans-Atlantic and trans-Pacific corridors. The interactive map and full methodology can be found at starboardintelligence.com/be taught/where-submarine-cables-are-most-at-risk-in-2026.
Starboard Maritime Intelligence offers maritime area consciousness that helps governments, defence businesses, and important infrastructure operators detect dangers, stop threats, and construct resilience in actual time. Companions embrace Ciena, Tampnet, Alcatel Submarine Networks, Kordia, and Searisk.
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