Over 800 cyber experts gather in Tallinn for NATO's CyCon 2025 conference

NATO's Cooperative Cyber Defence Centre of Excellence kicked off its 18th annual international cyber conflict conference CyCon 2025 in Tallinn. The event, themed 'Securing Tomorrow', brought together over 800 participants from nearly 50 countries to discuss the future of cyber defence.

Tallinn is hosting one of the world's premier cyber defence gatherings this week, as the NATO Cooperative Cyber Defence Centre of Excellence (CCDCOE) launched its 18th annual CyCon conference on Tuesday. The event, titled CyCon 2025: Securing Tomorrow, has drawn more than 800 experts, policymakers and researchers from nearly 50 countries.

The conference serves as a global forum for discussing pressing challenges in cybersecurity and international cyber conflict. Topics on the agenda include the evolving legal frameworks governing offensive cyber operations, the role of artificial intelligence in future cyber warfare, and strategies for strengthening critical infrastructure resilience.

NATO's CCDCOE, which is headquartered in Tallinn and was established in 2008, has grown into one of the world's leading centres for cyber defence research, training and exercises. CyCon is considered its flagship annual event, regularly attracting top-level government officials, military cyber commanders and leading academic voices from allied and partner nations.

Estonia has long positioned itself as a global leader in cybersecurity, a reputation reinforced by the country's experience with large-scale cyber attacks in 2007. The annual hosting of CyCon in Tallinn underlines Estonia's continued role at the heart of NATO's digital defence efforts.