The Hormuz risk question has changed and compliance frameworks haven't caught up

The question everyone has been asking about the Strait of Hormuz is the wrong one.

Can vessels pass? For most of the past three months, the answer has technically been yes. But that binary framing — open or closed — is now the least useful way to think about Hormuz risk. And the organisations still building their assessments around it are already behind.

The 2026 Hormuz crisis has produced something more complex and more durable than a blockade. It has produced a passage environment where vessels may move but their movements cannot always be trusted, verified or defended. Where insurance coverage technically exists but its commercial terms may make transit economically irrational. Where sanctions exposure can begin before a payment is made or a contract is signed. And where the most important risk indicators are not what diplomatic channels are saying, but how vessels are actually behaving.

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What changed, and when

The contrast with the June 2025 Twelve-Day War is instructive. During that conflict, Iran did not close the Strait. Vessel crossings dipped briefly and rebounded quickly. The market absorbed it. Risk teams logged it as a volatility event and moved on.

The 2026 crisis is structurally different. After Operation Epic Fury — the US-led campaign against Iranian military and IRGC infrastructure that opened on 28 February — visible crossings fell from 147 the day before the campaign to 78 on Day 0, 33 on Day 1, 13 on Day 2 and just 6 by Day 3. Across the first twelve days, Kpler recorded 189 crossings. During the equivalent period of the June 2025 conflict, there had been 2,310. That is a decline of around 92%.

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The disruption has since hardened rather than eased. On 12 April, a US-led naval cordon began enforcing tighter restrictions on Strait transit, opening a blockade phase that has redefined the operating environment. At the time of publishing, around 500 vessels remain trapped within the Middle East Gulf.

This is not a brief interruption. It is a structural shift in what Hormuz passage means — commercially, legally and operationally.

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The risk that travels with the voyage

Here is what that shift looks like in practice.

A vessel may be able to transit the Strait of Hormuz, but if its movement cannot be reliably observed, because GNSS spoofing has degraded or manipulated its positioning data, then its voyage record is compromised. Port-call verification fails. Exposure mapping breaks down. Voyage reconstruction becomes contested.

That matters because the downstream consequences do not stay at the waterway. They follow the cargo into sanctions screening. They appear in insurance claim disputes. They surface in charterparty arguments about whether a deviation was commercially justified or operationally necessary. They generate questions from banks and counterparties about what the vessel was actually doing and where.

The evidentiary burden has increased for every party in the chain. Risk and compliance teams are no longer only asking whether a vessel transited Hormuz. They are asking whether that transit can be documented, explained and defended — in real time, and after the fact.