Maritime cybersecurity
Maritime OT/SCADA Security Assessment in Chennai, India

Maritime OT and SCADA Security Assessment for Vessels in India

Codesecure Solutions provides specialized maritime OT/SCADA security assessment services in Chennai, India, evaluating the cybersecurity of operational technology systems onboard vessels including propulsion controls, engine management systems, power distribution, navigation OT, cargo handling, and ballast water management. OT cyberattacks on vessels more than doubled between 2024 and 2025, with attackers increasingly targeting SCADA and industrial control systems to disable vessel propulsion or compromise navigation systems, creating safety-critical situations at sea.

Our maritime OT/SCADA assessments are conducted using passive, non-intrusive techniques for live systems to guarantee zero disruption to vessel operations. Active testing is only performed during agreed maintenance windows or port calls. All findings are mapped to IACS UR E27, IEC 62443, and IMO cybersecurity guidelines, providing actionable remediation recommendations that account for maritime OT vendor constraints and dry-dock schedules.

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Maritime OT/SCADA Security Services We Provide

  • Navigation OT Assessment: Passive security assessment of ECDIS, AIS, GMDSS, radar, and GPS systems for firmware vulnerabilities, default configurations, and NMEA bus security weaknesses.
  • Propulsion and Engine OT: Assessment of propulsion control systems, engine management computers, fuel management systems, and auxiliary machinery controls for ICS vulnerabilities and insecure configurations.
  • Power Management Systems: Security review of vessel power management and electrical distribution control systems, identifying vulnerabilities that could allow an attacker to disrupt vessel power.
  • IT/OT Boundary Analysis: Assessment of network segmentation between IT and OT domains, validating zone and conduit controls and testing for lateral movement paths between crew networks and safety-critical OT systems.
  • Industrial Protocol Analysis: Passive capture and analysis of NMEA 0183/2000, Modbus, DNP3, and vendor-specific industrial protocols for unencrypted data, unauthorized commands, and protocol vulnerabilities.
  • IEC 62443 and IACS UR E27 Mapping: All findings mapped to IEC 62443 zone and conduit model and IACS UR E27 system-level requirements, supporting class society documentation and SMS compliance.
Maritime OT/SCADA Security Assessment in Chennai, India

Our Maritime OT/SCADA Security Process

A structured approach designed for the maritime environment

Phase 1: OT Asset Inventory

Complete inventory of all OT and SCADA systems onboard including makes, models, firmware versions, network connections, and operational functions, establishing the OT attack surface.

Phase 2: Passive Network Monitoring

Non-intrusive passive capture of OT network traffic to identify all communicating devices, protocols in use, unauthorized connections, and anomalous communication patterns.

Phase 3: Vulnerability Analysis

Analysis of identified OT assets against known vulnerability databases, vendor security advisories, and maritime-specific OT threat intelligence to identify exploitable weaknesses.

Phase 4: Segmentation Validation

Testing of zone and conduit controls between OT and IT networks to confirm effective isolation of safety-critical systems from crew and administrative networks.

Phase 5: Remediation Roadmap

Practical, vendor-aware remediation recommendations that account for OT system patching limitations, dry-dock schedules, and the operational constraints of maritime environments.

Why Choose Codesecure for Maritime OT/SCADA Security

  • Safety-First OT Testing: Strict passive-only methodology for live OT systems guaranteeing zero disruption to propulsion, navigation, or safety-critical vessel operations.
  • Maritime OT Protocol Expertise: Specialist knowledge of NMEA 0183/2000, Modbus, DNP3, and proprietary maritime OT protocols not covered by standard IT security assessments.
  • IEC 62443 Competence: Assessments aligned to IEC 62443 industrial cybersecurity standards referenced in IACS UR E26 and E27, providing internationally recognized compliance evidence.
  • Vendor-Aware Remediation: Remediation recommendations that account for OT vendor patching restrictions, end-of-life system constraints, and dry-dock availability schedules.
  • Chennai Location: Proximity to Chennai Port and major Indian shipping hubs enabling rapid mobilisation for onboard assessments during port calls across South India.
  • Integrated IT/OT View: OT assessment conducted alongside IT network testing for a unified view of the complete vessel attack surface and IT/OT boundary risks.

Maritime Sectors We Serve

  • Container Shipping Lines
  • Tanker and Bulk Carrier Operators
  • Offshore Platform Operators
  • Chemical and Gas Tankers
  • Bulk Carrier Operators
  • Ship Management Companies
  • Naval and Defence Vessels

Frequently Asked Questions About Maritime OT/SCADA Security

Yes. We use strictly passive, non-intrusive assessment techniques for all live OT systems. Passive network monitoring, offline firmware analysis, and configuration reviews create no risk to vessel operations. Active testing is only conducted on isolated test systems or during agreed maintenance windows.

Our assessment covers ECDIS, AIS, GMDSS, radar, GPS, autopilot, propulsion controls, engine management, power management, ballast water management, cargo systems, and any other SCADA or industrial control systems onboard the vessel.

Maritime OT operates in unique conditions including vibration, humidity, satellite-only connectivity, and strict safety constraints. Many maritime OT systems run proprietary software and older operating systems not covered by standard industrial security tools, requiring maritime-specific expertise and assessment approaches.

Our assessments align to IACS UR E27 for onboard computer-based systems, IEC 62443 for industrial control system security, IMO MSC-FAL.1/Circ.3, and BIMCO Guidelines on Cyber Security Onboard Ships.

Many OT vulnerabilities can be mitigated through configuration changes, network controls, and compensating controls without requiring system patching. Where patches are required, we identify which can be applied at sea and which require a port call or dry-dock, and provide risk mitigation guidance for the interim period.

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Get expert maritime ot/scada security from Codesecure Solutions, Chennai's trusted maritime cybersecurity partner

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