NewsPublished 3 Nov 2026

NATO’s Crossed Swords Exercise Brings AI Agents Into Cyber Operations Training

Source SecurityWeek

Description

The NATO CCDCOE Crossed Swords 2026 exercise in Estonia integrates AI agents, including OpenAI's Daybreak, into joint cyber and kinetic operations training. Over 250 participants from more than 40 countries practice synchronizing cyber effects with kinetic military actions, emphasizing precise timing. The exercise introduces AI agents to support operational workflows, reflecting a shift in the cyber threat landscape and training participants to balance AI capabilities with human oversight. Civilian partners and critical infrastructure protection are also incorporated into the training.

Impact

This exercise reflects the evolving cyber threat landscape where AI is increasingly integrated into cyber operations. While it is a training event rather than an active threat or vulnerability, it highlights the operational challenges and opportunities posed by AI in cyber defense and offense. There is no indication of an active exploit or vulnerability associated with this event. The impact is primarily on preparedness and capability development for cyber and kinetic operations synchronization involving AI.

Defensive guidance

No mitigation actions are required as this is a training exercise and not a vulnerability or active threat. The exercise itself serves as a proactive measure to enhance readiness for AI-integrated cyber operations. Organizations should monitor developments from such exercises for future operational insights but no immediate remediation is necessary.

Summary

Crossed Swords 2026 is a NATO Cooperative Cyber Defence Centre of Excellence exercise held in Tallinn, Estonia, involving over 250 participants from NATO and non-NATO countries. The exercise focuses on synchronizing cyber operations with kinetic military actions, with timing measured in minutes. A new feature this year is the inclusion of AI agents, deployed and assessed alongside human operators, using locally hosted AI and OpenAI's Daybreak cyber defense platform. The exercise aims to prepare participants to leverage AI in cyber operations while maintaining critical human oversight. It also involves collaboration with civilian partners to integrate critical infrastructure protection into operational plans.

References

securityweek.com/natos-crossed-swords-exercise-brings-ai-agents-into-cyber-operations-training/ (opens in a new tab)

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AI analysisMachine-generated, updated 3 Nov 2026, 08:58 UTC

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