Secure your IT & OT systems.
Anywhere.
Telemar TNL delivers robust cybersecurity for maritime IT and operational technology environments, protecting bridge electronics, onboard networks and corporate infrastructure against evolving threats, while keeping you fully compliant with IACS, IMO and NIS2 requirements.
24/7
Security Operations Centre monitoring across IT and OT
150+
Dedicated cybersecurity experts across the Marlink Group
6
NIST 2.0 framework pillars, full lifecycle cyber resilience
90%
Of attacks begin with phishing, crew training reduces this significantly
IT + OT
Unified protection across corporate systems and vessel operational technology, bridge electronics included
Protect what keeps your vessels operating.
Telemar TNL delivers cybersecurity solutions designed specifically for maritime environments, helping operators protect critical operational technology (OT) systems and onboard networks. Through assessments, risk management, compliance support and security improvements, we help reduce cyber exposure while supporting safe and efficient vessel operations.
Aligned to:
NIST 2.0 — full cyber resilience across IT and OT
Cybersecurity built for operational resilience.
Secure the systems that keep vessels moving
Navigation, communication and operational systems are essential to safe vessel operations. Telemar TNL helps reduce cyber risks that could impact critical onboard functionality.
Protect operational technology systems
Reduce operational cyber risk
Improve system resilience
Support safe vessel operations
Prepare for evolving threats
Cyber threats continue to become more sophisticated. A proactive security approach helps operators identify vulnerabilities before they become operational problems.
Identify security weaknesses early
Reduce exposure to cyber threats
Improve incident preparedness
Strengthen overall resilience
Navigate regulations with confidence
Cybersecurity requirements continue to evolve across the maritime industry. Telemar TNL helps operators understand requirements and implement practical measures to support compliance.
Support IMO cyber requirements
Improve audit readiness
Demonstrate cyber governance
Reduce compliance uncertainty
Move forward without increasing risk
As vessels become more connected, cybersecurity must evolve alongside operational technology and digital initiatives. Benefits
Secure connected vessel environments
Support remote services and monitoring
Protect digital investments
Enable future innovation safely
Real threats. Real maritime scenarios.
The cyber incidents Telemar TNL helps operators prevent, detect and recover from, every day across the global fleet:
Crew phishing attack compromises shore-side credentials
A crew member aboard a vessel in port opens a convincing phishing email and enters their corporate login credentials. Within hours, attackers use the compromised account to move laterally into fleet management systems ashore. Telemar TNL's Phishing Awareness Programme and Privileged Access Management stop the attack before it escalates, the crew member's training flags the email, and PAM blocks lateral movement even after the credentials are taken.
90%
of cyber-attacks begin with a phishing email targeting employees or crew
Ransomware locks vessel navigation and reporting systems
Ransomware propagates through an onboard network, encrypting ECDIS chart data, voyage reporting software and communications systems. The vessel cannot file regulatory reports and loses access to digital charts. Telemar TNL's SOC detects anomalous encryption behaviour within minutes, isolates affected systems, and manages recovery, restoring operational capability without paying the ransom.
40%
less likely to suffer a major incident when threats are detected within 24 hours
GPS spoofing attack displaces vessel position data
A vessel operating in a contested maritime region begins receiving falsified GPS signals that display an incorrect position on ECDIS, a known tactic used by nation-state actors to divert or confuse commercial shipping. Telemar TNL's OT-aware Network Detection and Response identifies anomalous positioning data inconsistencies and alerts the bridge team before navigational decisions are made on false information.
IACS
UR E26 / E27, OT cybersecurity standards Telemar is aligned to
NIS2 audit reveals critical compliance gaps across the fleet
An EU-flagged operator faces its first NIS2 compliance audit and discovers significant gaps in its cybersecurity documentation, incident response procedures and board-level reporting, with potential fines running to millions of euros for non-compliance. Telemar TNL conducts a Gap and Compliance Assessment, develops the required governance framework aligned to NIS2 and IACS requirements, and produces the full audit trail needed to demonstrate compliance to regulators.
€6B+
in GDPR and data breach fines imposed by the EU since regulations came into effect
Third-party vendor remote access exposes OT systems to attack
A navigation equipment manufacturer requires remote access to diagnose a fault on an ECDIS unit. Without proper controls, this vendor access creates an unmonitored pathway into the vessel's OT network. Telemar TNL's Secure Remote Access service provides the manufacturer with controlled, encrypted, time-limited access, logged and auditable, while PAM ensures the connection cannot be used to reach any system beyond the specific equipment being serviced.
74%
of breaches involve compromised, misused or stolen credentials
Solutions built around
operational reliability.
Every vessel depends on bridge systems, navigation equipment and communications infrastructure performing exactly when needed. Telemar TNL helps shipping operators reduce downtime, maintain compliance and improve operational resilience through integrated maritime technology and support services.
SERVICE & MAINTENANCE
Your service partner worldwide
Keeping bridge and navigation systems operational requires more than reactive repairs. It requires reliable support, technical expertise and global coverage whenever and wherever issues arise. Telemar TNL provides planned maintenance, troubleshooting, repairs and onboard technical support through a global service network that helps minimise disruption and maximise vessel availability.
SMART MAINTENANCE
Trusted expertise delivered proactively
Traditional maintenance often begins after operational impact has already occurred. Telemar TNL SMART Maintenance helps operators identify, diagnose and resolve issues earlier through connected diagnostics and remote support. By combining maritime expertise with real-time system visibility, SMART Maintenance helps improve reliability, reduce emergency call-outs and support more efficient maintenance planning.
BRIDGE INTEGRATION
Systems built for you
Telemar TNL designs and integrates bridge systems that align technology, workflows and operational requirements into a seamless environment. From retrofits to newbuild projects, we help operators improve usability, reliability and long-term performance across navigation and communication systems.
CLASS SURVEYS
No more compliance worries
Class surveys are essential for maintaining certification and operational readiness, but coordinating inspections, documentation and scheduling can be complex. Telemar TNL helps operators simplify the survey process through global coordination, technical expertise and proactive planning designed to minimise disruption to vessel schedules.
CONNECTIVITY
Reliable connectivity
Today's vessels depend on continuous access to operational data, remote support capabilities and business-critical communications. Telemar TNL delivers maritime connectivity solutions that provide secure, resilient communications between vessel and shore, helping operators improve visibility, responsiveness and operational continuity.
IT MANAGED SERVICES
Maritime IT support without the complexity
Managing vessel IT infrastructure across a fleet can place significant demands on technical teams. From onboard networks and hardware management to user support and system performance, maintaining consistency requires specialist expertise. Telemar TNL provides managed IT services designed specifically for maritime environments, helping operators maintain secure, reliable and efficient vessel IT operations both onboard and ashore.
GMDSS
Do you comply to the latest standards?
GMDSS systems play a critical role in vessel safety and regulatory compliance. Telemar TNL provides certified inspections, servicing and maintenance support to help ensure communication systems remain compliant and operational. Our specialists coordinate inspections, certification renewals and ongoing maintenance, helping operators reduce administrative burden while maintaining readiness.
Your Cybersecurity questions,
answered
Everything you need to know about protecting your maritime IT and OT environments with Telemar TNL.
Both, but with a strong focus on operational technology (OT) systems such as bridge equipment, communications infrastructure and connected vessel systems that directly support operations.
Yes. Telemar TNL supports operators in understanding and addressing maritime cyber security requirements and industry best practices.
Assessments provide visibility into vulnerabilities, identify areas of risk and support the development of practical mitigation strategies.
Absolutely. Strong cybersecurity foundations help operators adopt connected technologies, remote services and digital solutions with greater confidence.
Still have questions about Cybersecurity?
Our cyber specialists are ready to assess your current exposure - 24/7.
Telemar Cybersecurity Annual Report 2026
2026 Cyber intelligence report for maritime
A sector-exclusive deep dive into maritime cyber risk, driven by real-world data and expert analysis. Download the report to understand your exposure and how to strengthen resilience across your fleet.
What's inside
Key insights from this year’s reportCyber risks in maritime operationsForward-looking perspectives on emerging threatsMethodology and research approach
14 pagesNo sign up required
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