A group of leading shipping associations has published a new edition of the Maritime Industry Security Threat Overview (MISTO), reflecting recent security developments in the Red Sea, the Gulf of Aden and the Northwest Indian Ocean. The updated overview, dated 26 November 2025, is intended to give ship operators an up-to-date picture of regional threats affecting commercial shipping.
The revised document has been issued jointly by organisations including BIMCO, the International Chamber of Shipping (ICS), INTERCARGO, InterManager, the International Group of P&I Clubs, INTERTANKO, the Oil Companies International Marine Forum (OCIMF), CLIA and IMCA. The associations said the latest version focuses in particular on changes to the risk environment in waters off Yemen and Somalia and along key trade routes in the Northwest Indian Ocean.
MISTO summarises current physical security threats facing merchant shipping in several high-risk areas, including the Gulf of Guinea; the Red Sea and neighbouring waters; the wider Northwest Indian Ocean; the Malacca and Singapore Straits; and the Black Sea–Sea of Azov region. The document is presented as a high-level threat overview and does not replace company-specific risk assessments.
The industry bodies stressed that MISTO should be used alongside Best Management Practices for Maritime Security (BMP MS) and other recognised guidance available through the joint industry website Maritime Global Security. Shipowners and operators are encouraged to consult the latest version when planning or reviewing transits through the affected regions.
