Securing the Backbone: Alstom and Cylus Elevate Cyber-Resilience on the Tel Aviv Red Line

Layla Zulfa

July 19, 2026

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The landscape of modern urban transportation is shifting. As cities become increasingly interconnected, the "smart" infrastructure that powers our daily commutes—the signaling systems, automated train controls, and real-time communications networks—has become a prime target for digital adversaries. In a landmark move to secure one of Israel’s most ambitious infrastructure projects, Alstom, in strategic partnership with cybersecurity firm Cylus, has integrated an advanced, AI-driven defense solution into the signaling and train control systems of the Tel Aviv Red Line.

This initiative represents a paradigm shift in how rail operators approach the safety of their passengers. By embedding high-level cybersecurity into the very architecture of the Tel Aviv Light Rail Transit (LRT), the NTA Metropolitan Mass Transit System is setting a new standard for global rail security.


The Core Innovation: CylusOne and Urbalis 400

At the heart of this deployment is CylusOne, a rail-specific, multi-layered cybersecurity platform. Unlike generic enterprise security software, CylusOne is built with the unique technical requirements of railway signaling in mind. It is powered by sophisticated Artificial Intelligence (AI) and Machine Learning (ML) algorithms capable of processing vast amounts of data in real-time.

How the Solution Works

The CylusOne system acts as a digital sentinel, monitoring all in-transit data within the Red Line’s critical signaling, control, and communications networks. Its primary advantage is its non-intrusive nature; it performs its functions without altering the physical or technical design of the existing rail infrastructure.

When the system identifies an abnormality or a pattern indicative of a cyberattack, it does not simply sound an alarm. It provides the rail network’s operations team with immediate, actionable intelligence. Alongside threat alerts, the platform delivers "remediation playbooks," which are pre-calculated response strategies designed to neutralize threats before they can compromise train operations or passenger safety.

Integration with Urbalis 400

The project saw the successful integration of CylusOne into Alstom’s Urbalis 400—a world-class Communications-Based Train Control (CBTC) solution. The Urbalis system is designed to optimize performance and safety, and by layering CylusOne on top of it, Alstom has created a resilient, "hardened" control environment that can withstand the evolving threats of the 21st century.


Chronology: From Planning to Protection

The journey of the Tel Aviv Red Line is a story of long-term vision meeting modern necessity.

  • Early Development: The Red Line was conceived as the backbone of the Tel Aviv metropolitan transit system, designed to traverse the most congested urban corridors. During the initial design and approval phases, the cyber-threat landscape was significantly different than it is today.
  • The Cybersecurity Imperative: As the project progressed toward completion, NTA and Alstom recognized that traditional physical security was insufficient. The rapid digitization of rail systems necessitated a dedicated cyber-defense strategy.
  • The Partnership: Following Alstom’s strategic investment and minority stake acquisition in Cylus, the two entities began the technical integration process. NTA cybersecurity professionals were deeply involved, ensuring that the solution met the rigorous security standards required for critical national infrastructure.
  • Deployment and Future Outlook: Following the initial integration phase, the system is now being fully incorporated into the Cyber Security Operations Center (CSOC) of the Tel Aviv Red Line. This transition marks the shift from a developmental project to an operational security mandate.

Supporting Data: The Anatomy of the Red Line

To understand the scale of this security deployment, one must look at the physical infrastructure of the Red Line itself. It is a 24-kilometer arterial route that serves as the primary transit spine for the Tel Aviv metropolitan area.

  • Geographic Reach: The line connects the southern city of Bat Yam to the northeastern hub of Petah Tikva.
  • Engineering Complexity: Of the 24 kilometers, 11 kilometers are subterranean.
  • Station Density: The line features 34 stations, 10 of which are underground, requiring complex signaling and ventilation systems that all depend on the integrity of the underlying control network.
  • Scalability: Future plans include an extension to the Moshe Dayan interchange in Rishon Lezion, meaning the cybersecurity architecture deployed today must be capable of scaling alongside the physical growth of the network.

Official Perspectives: A Strategic Necessity

Eran Cohen, Managing Director of Alstom Israel, articulated the significance of this milestone during the project’s unveiling. "By integrating CylusOne into the Alstom portfolio, we now provide our clients solutions to problems that did not even exist when the Red Line was planned and approved," Cohen stated.

His comments underscore a critical reality in modern engineering: the lifespan of infrastructure is measured in decades, while the lifecycle of a digital threat is measured in months. By future-proofing the Red Line, Alstom is ensuring that the transit system remains secure against tomorrow’s attacks.

Advanced rail cybersecurity solution for Tel-Aviv Red LRT

The collaboration with NTA (NTA Metropolitan Mass Transit System) was also pivotal. The decision to incorporate CylusOne was not merely a technical choice by a vendor, but a strategic decision by the client to prioritize the "Security-by-Design" philosophy.


Implications: The Future of Rail Security

The deployment of CylusOne on the Tel Aviv Red Line has profound implications for the global rail industry.

1. The Shift to "Security-by-Design"

For decades, rail security was synonymous with physical barriers, CCTV, and personnel. Today, a rail line is essentially a massive, distributed computer network on tracks. The Alstom-Cylus model proves that cybersecurity must be baked into the signaling systems themselves, rather than being added as an afterthought.

2. Addressing the "Legacy" Gap

Many of the world’s metro systems were built using legacy systems that were never designed to be connected to the internet. As these systems are modernized, they become vulnerable to hackers. The ability to overlay a solution like CylusOne without re-engineering the entire signaling architecture provides a vital path forward for cities that cannot afford to tear down and rebuild their existing rail assets.

3. Regulatory and Insurance Pressures

As governments across the globe begin to classify public transit as "Critical Infrastructure," regulators are increasingly demanding proof of cyber-resilience. The Tel Aviv model serves as a blueprint that other metro operators can present to insurance companies and government regulators to demonstrate that they have taken "reasonable and necessary" steps to mitigate risk.

4. The Role of AI in Human-Centric Operations

The integration highlights a trend in industrial automation: AI is not intended to replace human operators, but to empower them. By providing "remediation playbooks," the system ensures that human operators are never left guessing when a threat arises. It transforms the role of the security analyst from a reactive observer into a proactive defender.


Conclusion

The integration of advanced cybersecurity into the Tel Aviv Red Line is more than just a software update; it is a fundamental evolution of urban safety. As metropolitan areas continue to densify and transit systems become the arteries of economic activity, the ability to protect these systems from malicious interference is paramount.

Through the synergy of Alstom’s signaling expertise and Cylus’s AI-powered threat detection, the Tel Aviv Red Line is no longer just a light rail system—it is a protected, resilient, and future-ready network. For the millions of passengers who will rely on the Red Line for their daily commute, this partnership ensures that the journey remains not only efficient and convenient but also fundamentally secure against the unseen dangers of the digital age.

As the project moves into its final integration phase at the Cyber Security Operations Center, it serves as a beacon for other major cities worldwide, demonstrating that while the threats of the future are complex, the tools to combat them are already within our reach.

Written by Layla Zulfa

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