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The NATO Cooperative Cyber Defence Centre of Excellence is a multinational and interdisciplinary cyber defence hub

We do research, training and exercises in four core areas: technology, strategy, operations and law

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09.05.2025

Locked Shields 2025 Showcased Nations' Commitment to Defending Cyberspace

Locked Shields 2025, organised by the NATO Cooperative Cyber Defence Centre of Excellence, brought together 41 nations committed to defendin...

05.05.2025

Nations unite under pressure as Locked Shields 2025 kicks off in Tallinn

This week, the world’s most complex cyber defence exercise, Locked Shields 2025, launches with full force in Tallinn, Estonia. Organised by ...

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Locked Shields

International Conference on Cyber Conflict – CyCon

The Tallinn Manual

Recent publications

2025

17th International Conference on Cyber Conflict: The Next Step

The Proceedings of the 17th International Conference on Cyber Conflict: The Next Step will be published during the Conference on...

2025

WMGIC x NATO Countering Disinformation Challenge 2024

For the third year in row, the NATO CCDCOE supported the undergraduate student competition tackling the issue of disinformation organized...

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Our success is built on mutually beneficial collaboration with various partners. Let us know if you are interested in cooperation with us!
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The NATO Cooperative Cyber Defence Centre of Excellence

ccdcoe-at-ccdcoe.org
+372 7176 800
Filtri tee 5, Tallinn 10132, Estonia

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