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.