Dubbed "Defense Cyber Marvel 4 (DCM4)" and hosted by the U.K. Ministry of Defense, this year’s drill, involving more than 1,000 participants from around 26 countries via Zoom at 20 different locations across the world, was held in Goyang, just northwest of Seoul, with over 400 representatives from South Korea, the U.K., and other countries.
DCM4, one of the world's largest multinational cybersecurity drills, was designed to strengthen the cyber defense capabilities of participating countries through collaboration, competition, and knowledge-sharing.
Participants practiced defending against simulated cyberattacks targeting critical infrastructure and key facilities, with scenarios including artificial intelligence-driven and quantum computing-based attacks, as well as satellite hacking, aimed at enhancing capabilities to respond to evolving threats.
This was the first time DCM4 was held outside Europe, following a joint South Korea-U.K. team's victory at a competition during last year's exercise in Estonia.
The U.K. and South Korea have expanded cybersecurity cooperation since President Yoon Suk Yeol's state visit to London in November 2023, when the two countries signed a strategic partnership.
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