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Seafarer Index

Maritime cyber security

IMO MSC.428(98) cyber-risk management requirements + the practical defensive posture every modern bridge + ECR needs. Phishing, ransomware, ECDIS spoofing, OT/IT segregation.

What it is

The defensive posture against cyber threats targeting the IT (information technology) + OT (operational technology) systems on a modern vessel. IMO MSC.428(98) (2017) requires cyber-risk management in the ship's Safety Management System (SMS) from 1 January 2021. Insurance + flag-state inspections now check it.

Why it matters

Ransomware against shore-side maritime IT (Maersk 2017, COSCO 2018, MSC 2020) has cost the industry billions. Vessel-side attacks on ECDIS + GNSS are less common but increasing in frequency. Crew phishing + USB-based malware are the most common attack vectors.

Where it stands in 2026

Universal requirement under MSC.428(98) — every vessel's SMS must address cyber. ISO/IEC 27001 + IACS UR E26 + E27 are emerging baselines. Insurance + class-society audits routinely check cyber posture.

Training implications

Safety risks

Career angles

Common misunderstandings

Related

Primary sources

High confidence

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