Cyber

Protecting ports from cyber attacks

August 18, 2025

Cybersecurity Threats to Ports and Critical Infrastructure in East Africa

East Africa’s ports are more than just gateways for goods. They are the arteries through which much of the region’s economy flows. From the Port of Mombasa, serving as a hub for East and Central Africa, to the emerging Lamu Port and the Standard Gauge Railway connecting coastal trade to inland markets, ports and their surrounding infrastructure keep businesses supplied, economies moving, and communities connected.

But in recent years, these very lifelines have come under increasing threat. Ports and their connected systems have become prime targets for ransomware attacks. The consequences are not abstract—they are immediate and costly: delayed shipments, fuel shortages, rising prices, and risks to safety and national security.

This month’s newsletter takes a closer look at how ransomware targeting ports has evolved, why critical infrastructure surrounding ports is increasingly vulnerable, and what practical steps organizations can take to protect themselves.

The Evolution of Port Ransomware: When Cyber Attacks Stop Ships

Not long ago, ransomware was largely limited to locking up files on office computers. Today, it has become something far more dangerous. Attackers now aim at operational technology (OT)—the cranes that move containers, the systems that manage cargo flows, and even the software that ships rely on to navigate.

This shift has made ports vulnerable to disruptions that can ripple far beyond the harbor walls. A single compromised system can grind entire supply chains to a halt.

Consider the timeline:

  • 2017 – NotPetya: The shipping giant Maersk became a global cautionary tale when malware spread through its systems, shutting down terminals and costing the company more than $300 million.
  • 2023 – Australia: Several Australian ports were hit by ransomware, leaving over 30,000 containers stranded and paralyzing nearly 40% of the country’s freight movement.
  • 2024 – Coordinated attacks: Hackers launched simultaneous campaigns against multiple ports, manipulating both IT and Automatic Identification Systems (AIS) on ships. The result was chaos—misrouted cargo, delayed shipments, and losses exceeding $500 million.

These attacks reveal a troubling pattern: cybercriminals have learned that when a port stops, everything stops.

Why ports are attractive targets

Ports present an ideal storm of vulnerabilities:

  • High stakes: Every hour of disruption translates into millions in economic losses.
  • Outdated technology: Many ports still run on legacy systems that lack modern safeguards.
  • Complex ecosystems: Hundreds of companies—shipping lines, trucking firms, customs, and terminal operators—all interact at ports, each a potential entry point.
  • Operational pressure: Ports run 24/7, leaving little downtime to apply critical patches or upgrades.

In Africa, these vulnerabilities are already being tested. Logistics providers in South Africa have faced attacks that disrupted supply chains region-wide, while Nigerian ports report weekly ransomware attempts.

Beyond the Port Gates: Critical Infrastructure Under Attack

The threat doesn’t stop at the dockside. Increasingly, attackers are looking beyond the gates to the systems that support port operations—fuel terminals, railway connections, power grids, and water utilities. These are often less protected but just as essential.

Fuel and energy systems

Ports cannot function without fuel. In Europe, ransomware attacks on oil terminals forced supply rerouting in 2022. The Colonial Pipeline attack in the United States showed how fuel infrastructure disruptions can cripple transportation. In Africa, similar risks exist at port fuel terminals, where industrial control systems could be hijacked to halt refueling.

Transportation networks

Railways are vital for moving goods inland. East Africa’s Standard Gauge Railway (SGR) is a prime example, linking ports to cities and markets. But as signaling and tracking systems become digitized, they also become vulnerable. A cyber attack here could create not just delays, but real safety hazards.

Power and utilities

Ports rely heavily on electricity—for cranes, refrigerated containers, lighting, and more. Attacks on power grids can be as devastating as direct ransomware on port systems. Even water utilities, essential for firefighting, are vulnerable and often overlooked in security planning.

What this means for Africa

The interconnected nature of these systems creates cascading effects:

  • Economic impact: Delayed shipments hit businesses across entire regions.
  • Safety risks: Compromised control systems can cause accidents.
  • National security: Ports are strategic assets, critical for military and emergency supplies.
  • Public services: From medical supplies to fuel, essential goods often depend on uninterrupted port operations.

Building Resilient Defenses

If the risks are growing, so are the defenses available to ports and operators. The good news is that there are practical, proven steps organizations can take today.

Protecting port operations

  • Segment networks: Separate IT and OT systems to prevent attacks from spreading across environments.
  • Control access: Restrict personal devices and USB use in sensitive areas.
  • Backup smart: Keep offline, air-gapped backups and test restoration processes regularly.
  • Strengthen the basics: Train employees to recognize phishing (the entry point for most ransomware) and ensure vendors have only time-limited, necessary access.
  • Plan for incidents: Develop and rehearse response plans that include manual fallback procedures.

Securing connected infrastructure

  • Fuel and energy: Deploy firewalls and intrusion detection systems tailored for industrial environments. Maintain manual overrides for automated processes.
  • Transportation: Encrypt all signaling and control data. Use redundancy for safety-critical systems. Audit connected systems regularly.
  • Utilities: Monitor for unusual consumption patterns, enforce multi-factor authentication, and coordinate closely with utility providers.

The power of regional cooperation

Cybersecurity is not something any one organization can solve alone. Effective defense requires collaboration:

  • Sharing threat intelligence among ports and operators.
  • Participating in regional cybersecurity exercises.
  • Aligning with international standards such as the IMO’s cyber risk management guidelines, the NIST Cybersecurity Framework, and ISO/IEC 27001.
  • Working hand-in-hand with national cybersecurity agencies.

Closing Thoughts

The digital transformation of ports and infrastructure has created new opportunities, but also new vulnerabilities. Cybersecurity at ports is no longer just about protecting IT systems—it is about safeguarding trade, national security, and economic stability.

The reality is that the attackers are innovating, but so are the defenses. By taking action now—segmenting networks, training staff, enforcing strict vendor management, and collaborating across the region—ports and operators can build resilience against this evolving threat.

At Plena Solutions, we understand the unique challenges facing African ports: resource constraints, legacy systems, and the need to maintain operations while modernizing defenses. Our focus is on delivering practical, effective solutions that work in these environments while meeting global security standards.

In today’s connected world, the security of one is the security of all. Protecting our ports and infrastructure means protecting our economies, our businesses, and our communities.

Sources and Further Reading

  • Cyberattacks on the Maritime Industry – Cyble
  • Maritime Software Ransomware Incident – The Record
  • CCDCOE on Port Cyber Attacks – Help Net Security
  • Industry Spotlight: Port & Maritime – Surefire Cyber
  • NATO Warnings on Port Cyberattacks – Industrial Cyber
  • IMO Guidelines on Maritime Cyber Risk Management
  • NIST Cybersecurity Framework for Critical Infrastructure
  • ISO/IEC 27001 for Port Authorities

About Plena Solutions
Plena Solutions Ltd. is a cybersecurity solutions provider serving private and public organizations across Eastern and Southern Africa. With offices in Kenya and Israel, we combine local insight with leading global technologies to help clients manage risk and stay ahead of emerging threats.