Maritime Risk Intelligence Blog | Channel 16

Indian Ocean maritime security: a guide for operators

Written by Meredyth Grant | Jun 18, 2026 4:26:35 PM

The Indian Ocean carries a large share of the world's energy and trade, and almost all of it funnels through a handful of narrow chokepoints. That geography makes the region both indispensable and exposed. For any operator routing through it, three forces shape the risk picture at once: a resurgent piracy threat radiating out from the Somali basin, intensifying great-power competition between India and China, and a dense web of naval patrols and information-sharing centres trying to keep the sea lanes open. The bottom line is simple. The Indian Ocean is not a single threat zone but a layered one, and sound routing depends on reading those layers for your specific waters and transit window, not on a single label.

Why the geography drives everything

The Indian Ocean Region, often shortened to IOR, links the oil and gas of the Gulf, the manufacturing of East Asia, and the markets of Europe. Its strategic weight comes from three chokepoints that pinch global trade into vulnerable lanes.

  • The Strait of Hormuz. The single most important oil artery on earth. It carried roughly a fifth of global oil consumption in 2025, and the large majority of that crude is bound for Asian buyers including China, India, Japan and South Korea. There is no meaningful pipeline bypass for most of it.
  • The Strait of Malacca. The busiest oil chokepoint in the world, funnelling close to a third of seaborne oil trade between the Indian Ocean and the Pacific. It is the gateway that connects the IOR to East Asian demand.
  • The Bab-el-Mandeb strait. The narrow southern mouth of the Red Sea, linking the Indian Ocean to the Suez route into Europe. Smaller by volume than Hormuz or Malacca, but its disruption reroutes ships the long way around southern Africa, adding days and cost to every affected voyage.

These straits explain why so many navies invest in the IOR, and why a problem in one corner of the ocean can ripple across global supply chains. They also explain why the region is contested: control of, or access to, these approaches is a strategic prize.

Piracy: the threat that never fully left

Somali-based piracy was the defining IOR maritime-security story of the early 2010s. A sustained international naval effort, hardened vessels and embarked security teams drove attacks down sharply, and for several years the basin was quiet. That calm proved to be a lull, not a cure.

The International Maritime Bureau flagged a clear resurgence beginning in late 2023, with a cluster of incidents across the western Indian Ocean and Gulf of Aden, including several hijackings, the first such run in years. A further, more aggressive surge followed in late 2025, with coordinated attacks deep in the Somali basin. The most important lesson for operators is not the count of incidents but the reach: pirate action groups have again demonstrated the ability to strike vessels many hundreds of nautical miles offshore, far beyond the coastal waters many passage plans treat as the danger zone.

This matters because the old mental model, that risk lives near the Somali coast and fades with distance, is wrong. The threat is mobile, it tracks the weather windows that let small boats operate, and it can re-emerge faster than static designations are redrawn. We cover the current pattern in more depth in our analysis of the Somali basin piracy surge, and the wider question of how fixed risk boundaries lag a moving threat in our guide to High Risk Areas.

The Indian Navy as first responder

India has positioned itself as the resident security provider of the IOR, and its navy is now routinely the first warship on the scene when a merchant vessel is attacked. Since deploying anti-piracy units to the Gulf of Aden and the East African coast in 2008, the Indian Navy has escorted thousands of ships and tens of thousands of seafarers through the threat corridor.

The capability is real, not symbolic. In a high-profile 2024 operation, the destroyer INS Kolkata tracked a hijacked bulk carrier hundreds of miles off Somalia, disabled it with drones and marine commandos over a roughly 40-hour action, and recovered the crew while the pirates surrendered. Across the recent resurgence the Indian Navy has surged mission-based deployments into the western Indian Ocean, foiling boarding attempts and conducting rescues. For operators, the practical takeaway is that the IOR has an active and capable naval responder, but response is not prevention: a warship that arrives after a boarding has begun is managing a crisis, not averting one.

Information fusion: the IFC-IOR

Naval muscle is only as good as the picture that directs it. The hub for that picture is the Information Fusion Centre for the Indian Ocean Region, the IFC-IOR, established at Gurugram, near Delhi, in 2018 and co-located with India's national maritime data centre run jointly by the navy and coast guard.

The centre's value is its network. It hosts international liaison officers from partner nations and regional groupings, compressing the time between an incident at sea and a coordinated response. An upgraded facility inaugurated in 2025 expanded capacity to host liaison officers from a much larger set of partners, including regional bodies such as the Indian Ocean Rim Association and the Djibouti Code of Conduct framework, and introduced new analytics tooling to track commercial traffic. The QUAD grouping has tied its maritime-domain-awareness programme into this architecture, extending shared surveillance into the IOR. Smaller island states are woven into the same fabric: information-sharing arrangements with partners such as Seychelles and Mauritius extend coverage across the western basin that no single navy can patrol alone.

For a commercial operator, the significance is straightforward. The IOR is one of the better-instrumented oceans for collaborative awareness, but that awareness is built for states and navies. Translating it into a decision for a specific hull, on a specific date, in specific waters is a separate task, and the one that matters most to a routing call.

Great-power competition shapes the backdrop

The IOR is also the stage for sustained competition between India and China, and that rivalry increasingly conditions the security environment.

China's presence has grown from commercial logistics into a strategic footprint. Analysts describe a chain of ports and facilities across the ocean's key lanes, sometimes called the "string of pearls," spanning sites in Pakistan, Sri Lanka, Myanmar, Bangladesh and elsewhere. Many are commercial terminals with potential dual-use value rather than confirmed military bases, and the distinction matters for sober analysis. What is not in doubt is China's first overseas military base at Djibouti, opened in 2017 at the mouth of the Bab-el-Mandeb, alongside a standing naval presence that began as anti-piracy escort and has since become permanent.

India's response has been to deepen its own network: hardening ties with island states, partnering with France and the European Union across the western Indian Ocean and the Bay of Bengal, and building the IFC-IOR into a regional nerve centre. For operators, this competition is mostly a backdrop, but it has real edges. It raises the level of naval activity and surveillance in sensitive waters, sharpens sensitivities around chokepoints, and means a routine commercial transit can intersect with state-level tension. The practical question is less about who wins the rivalry and more about where elevated military activity overlaps with your intended track.

The island states and the western basin

The western Indian Ocean is too vast for any one navy to watch, so security there runs on partnership. India has built basing and surveillance arrangements with small island states to extend its reach: facilities developed with Mauritius give a presence near the southern lanes, and information-sharing with Seychelles helps cover the approaches that pirate action groups exploit. France, with sovereign territory and a permanent naval footprint in the region, is a central partner in the same effort, and European patrols add a further layer around the Gulf of Aden and the Horn.

The effect for shipping is a patchwork of overlapping coverage rather than a single shield. Some waters are well watched; others, particularly the open expanses of the central and southern basin, are thin. Knowing which is which for a given leg is part of any serious IOR risk assessment, because the gaps are exactly where opportunistic threats prefer to operate.

Cooperation reaching east to the Bay of Bengal

Security cooperation in the IOR no longer stops at the Horn of Africa. The same architecture now reaches east, linking the western basin with the Bay of Bengal and the approaches to Malacca, and connecting Indian, European and regional partners along the full length of the trade route. For an operator running a Gulf-to-East-Asia voyage, that means a single passage can cross several cooperation zones with different reporting expectations and different levels of surveillance. Treating the IOR as one undifferentiated leg misses those seams.

What it means for operators

Pulling the layers together, a few principles hold across the region.

  • Read the basin, not the label. The IOR contains very different risk profiles: piracy in the Somali basin, state and missile risk near Bab-el-Mandeb, congestion and competition around Malacca and Hormuz. Build the threat picture for the specific leg you intend to sail.
  • Respect the offshore reach. Treat the Somali piracy threat as a deep-water problem, not a coastal one. Action groups have struck many hundreds of miles from land, well beyond the comfort zone of an older passage plan.
  • Use the naval architecture, but plan to prevent. Register with the relevant reporting centres and value the Indian Navy's responsiveness, while hardening the vessel so a response is never needed.
  • Watch the chokepoints closely. Hormuz, Bab-el-Mandeb and Malacca concentrate both value and risk. Tension around any of them can change routing economics overnight.
  • Re-assess close to departure. The IOR threat picture moves with the monsoon, with the piracy season, and with regional politics. A plan signed off weeks ahead can be overtaken; confirm risk near sailing and monitor it under way.

For the full regional context behind these calls, see our regional threat intelligence hub, and our companion analysis of how a long-running threat can recede in one ocean while persisting elsewhere in why West Africa's pirates have not really gone.

Where Verihelm helps

The Indian Ocean gives operators a wealth of naval cover and shared awareness, yet none of it tells a single master what the threat is for one hull, on one date, on one track. That is the gap Verihelm closes. The platform fuses incident reporting, vessel activity and open-source intelligence across the IOR, then has experienced maritime analysts assess and contextualise it, so a routing decision rests on the current picture for your specific waters and transit window rather than on a region-wide label. It distinguishes piracy from state-level and missile risk, flags deterioration before a fixed boundary catches up, and ties the assessment to the route you intend to sail. To see the live IOR picture for your trade lanes, request a demo.