[OT Sec] “A Single Cyberattack Could Cause Billions in Damages?! UR E26-Based Ship Cybersecurity Checklist Revealed!”

Table of Contents
🚢 UR E26-Based Cybersecurity Assessment Checklist for Ships 🔐
With rapid digitalization, the connectivity between Operational Technology (OT) and Information Technology (IT) systems onboard ships has significantly increased. While this enhances operational efficiency, it also elevates the risk of cyber threats. In response, the International Maritime Organization (IMO) and the International Association of Classification Societies (IACS) have introduced UR E26 Rev.1 (2023) to ensure cyber resilience for ships.
This checklist was developed to help ship operators evaluate their vessel’s cybersecurity posture and identify required controls. The key evaluation areas include:
- Asset identification and network mapping (Identify)
- Access control and network protection (Protect)
- Anomaly detection and monitoring (Detect)
- Incident response and containment (Respond)
- Backup and recovery planning (Recover)
- Compliance and certification (Compliance & Certification)
The checklist enables ship operators to identify current vulnerabilities and develop action plans to comply with UR E26 requirements. By doing so, they can prevent cyberattacks and respond effectively in emergencies, ensuring safety and business continuity at sea.
📌 Assessment Overview
- Objective: Evaluate the ship’s cyber resilience and define security control measures based on UR E26
- Target Audience: Ship operators, classification societies, cybersecurity consultants
- Evaluation Method: ✅ (Compliant) / ⚠️ (Partially Compliant) / ❌ (Non-Compliant)
1️⃣ Identify – Asset & Risk Identification

📌 Objective: Identify onboard assets and evaluate cybersecurity risks in advance
| No. | Control Item | Description |
|---|---|---|
| 1.1 | Asset Inventory Management | Are hardware and software inventories of CBS (Computer-Based Systems) documented? |
| 1.2 | Network Architecture Mapping | Is the network topology documented and system interaction defined? |
| 1.3 | Cyber Risk Assessment | Are periodic cybersecurity risk assessments conducted for OT and IT systems? |
| 1.4 | Vulnerability Management Process | Are vulnerabilities documented and mitigation procedures in place? |
| 1.5 | Change Management Process | Are changes to hardware/software tracked and managed? |
Tools & Solutions:
- Asset Management Tools: ITAM, CMDB, RFID/Barcode scanning systems
- Network Mapping Tools: Nmap, SolarWinds, Microsoft Visio, Lucidchart
- Risk & Vulnerability Assessment: Nessus, Qualys, RSA Archer, ServiceNow Risk Management
- Change Management: ITIL-based tools (e.g., ServiceNow, BMC Remedy)
2️⃣ Protect – Network & System Protection

📌 Objective: Apply technical and administrative controls to protect critical systems and prevent breaches
| No. | Control Item | Description |
|---|---|---|
| 2.1 | Security Zones & Network Segmentation | Are OT and IT systems separated into distinct security zones? |
| 2.2 | Firewall & Network Security | Are firewalls deployed and security policies enforced? |
| 2.3 | Access Control & Authentication | Are least privilege principles applied, with separate user/admin accounts? |
| 2.4 | Account Management & MFA | Is multi-factor authentication implemented and account usage monitored? |
| 2.5 | Wireless Network Security | Are Wi-Fi/Bluetooth zones secured with encryption and access controls? |
| 2.6 | Remote Access Protection | Is remote access restricted to authorized users and logged? |
| 2.7 | Malware Defense & Endpoint Protection | Are anti-virus and endpoint protection solutions implemented? |
Tools & Solutions:
- Network Segmentation: VLAN, SDN solutions
- Firewall & IPS/IDS: NGFW (Palo Alto, Fortinet), Snort, Suricata
- Access Control & PAM: Active Directory, LDAP, MFA (Duo, RSA), PAM tools
- Wireless Security: WPA3 encryption, NAC solutions
- Remote Access: VPNs, Remote Desktop Gateway, session logging tools
- Endpoint Security: Symantec, McAfee, CrowdStrike, EDR solutions
3️⃣ Detect – Threat Detection & Monitoring

📌 Objective: Build capabilities to detect anomalies and cyber threats in ship systems and networks
| No. | Control Item | Description |
|---|---|---|
| 3.1 | Network Monitoring System (NMS) | Is there a system continuously monitoring network performance? |
| 3.2 | Intrusion Detection System (IDS) | Is an IDS deployed in passive mode to detect anomalies? |
| 3.3 | Security Event Logging & Auditing | Are events logged and regularly audited? |
| 3.4 | User & Entity Behavior Analytics (UEBA) | Is UEBA applied to detect abnormal behavior patterns? |
Tools & Solutions:
- Network Monitoring: SolarWinds, PRTG, SNMP tools
- IDS Solutions: Snort, Suricata, Zeek (Bro)
- SIEM Platforms: Splunk, IBM QRadar, ArcSight
- UEBA Solutions: Exabeam, Securonix, Varonis
4️⃣ Respond – Incident Response & Containment

📌 Objective: Establish procedures to respond swiftly and minimize damage in case of cyber incidents
| No. | Control Item | Description |
|---|---|---|
| 4.1 | Cyber Incident Response Plan | Are documented response procedures in place and well-known by staff? |
| 4.2 | Training & Simulation | Are regular cybersecurity drills conducted for IT/OT teams? |
| 4.3 | Isolation & Containment Procedures | Can affected systems be promptly isolated during an incident? |
| 4.4 | Reporting to Authorities & Stakeholders | Are procedures in place to report to ENISA, EU authorities, and classification societies? |
Tools & Solutions:
- Incident Response Platforms: TheHive, Cortex XSOAR, ServiceNow
- Containment Tools: SDN, Software-Defined Perimeter, SOAR solutions
- Reporting Systems: Integrated communication tools (Slack, MS Teams), dashboards
5️⃣ Recover – Backup & Operational Continuity

📌 Objective: Ensure systems can be restored and operations can continue after incidents
| No. | Control Item | Description |
|---|---|---|
| 5.1 | Backup & Recovery Policies | Are policies in place for system/data backup and recovery? |
| 5.2 | Backup Integrity & Testing | Are backups validated and tested regularly? |
| 5.3 | Patch & Update Management | Are patches applied on schedule and supported for at least 5 years? |
| 5.4 | Cyber Resilience Testing | Are regular resilience assessments conducted? |
Tools & Solutions:
- Backup & Recovery: Veeam, Commvault, DR/BCP systems
- Patch Management Tools: Microsoft SCCM, Ivanti
- Resilience Testing: Simulations, recovery drills, BCP management tools
6️⃣ Compliance & Certification

📌 Objective: Demonstrate compliance with UR E26 requirements and obtain necessary certifications
| No. | Control Item | Description |
|---|---|---|
| 6.1 | Documentation for Compliance | Are security policies, procedures, and test results documented? |
| 6.2 | EU Declaration of Conformity (DoC) | Has a DoC been submitted per CRA and UR E26 standards? |
| 6.3 | Classification Society Audits | Are audit requirements from classification societies fulfilled? |
Tools & Solutions:
- Compliance Platforms: GRC tools (RSA Archer, MetricStream), DMS
- Audit & Certification: Internal audit tools, CE marking readiness platforms
- Reporting Dashboards: Power BI, Tableau
📌 Conclusion
To comply with UR E26, appropriate technologies must be implemented across the full cybersecurity lifecycle—from asset identification to recovery. Ship operators must develop and maintain strong technical controls to meet international security standards and protect vessels from cyberattacks. 🚀🔐