Lëtzebuerger Arméi

CYBER FORTRESS 2027

Take part in the largest national cyber defense exercise in Luxembourg

Contact us to participate

Our partners

  • Cyber Range Luxembourg
  • Police Lëtzebuerg
  • Luxembourg House of Cybersecurity
All our partners

What is Cyber Fortress about?

Cyber Fortress is Luxembourg’s flagship national cyber defense exercise, organized by the Luxembourg Armed Forces in close cooperation with the Directorate of Defence and key national partners. Since its launch in 2021, the exercise has continuously evolved—from initially focusing on technical challenges to delivering realistic, scenario-driven simulations that now also integrate strategic communication, media injects, and comprehensive crisis management.

Each year, Cyber Fortress brings together cybersecurity experts from Luxembourg and numerous partner nations. With more than 200 participants on site and additional participants connected remotely, the exercise provides a unique platform for international cooperation and interoperability across military, governmental, and strategic domains. By simulating real-time cyberattacks against critical systems, Cyber Fortress enables the exchange of expertise, enhances incident response capabilities, and strengthens collective cyber resilience. 

Participants share their experiences

  • Digisquad

    Benjamin Collas

    CEO Digisquad

    They offer the opportunity to test your skills, grow, and above all communicate effectively during a major crisis.
  • The government of the Grand Duchy of Luxembourg Ministry of the Economy

    Steve Muller

    Cybersecurity-Spezialist

    Ministère de l’Économie Luxembourg

    De Cyber Fortress Exercice bitt eng flott Opportunitéit, vill praktesch Erfarung an enorm kuerzer Zäit ze gewannen, an dobäi gläichzäiteg aner Acteuren am Cybersecuritéit-Beräich zu Lëtzebuerg an Emgéigung kennen ze léieren.
  • Uni.lu | SNT

    Dr Beltran Fiz

    Researcher

    Interdisciplinary Centre for Security, Reliability and Trust (SnT)

    The Cyber Fortress exercise truly underscored the immense complexity of managing a cyber crisis, even within a simulated environment. Witnessing professionals from various sectors across Luxembourg collaborate seamlessly with their European counterparts was not only inspiring but also a powerful demonstration of what unified efforts can achieve.
See all the testimonials

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