Cyber without borders: How Estonia turned crisis into cyber power.

In this three-part series, Maria Varmazis, host of T-Minus Space Daily and CyberWire Producer Liz Stokes, take you inside NATO’s flagship cyber defense exercise, Cyber Coalition 2025. Hosted by the NATO Cooperative Cyber Defence Centre of Excellence in Tallinn, Estonia, the exercise brings together military, government, and industry teams from across the alliance to respond to realistic, high-pressure cyberattack scenarios targeting critical infrastructure and operational networks. Throughout the series, Maria and Liz will guide you through what they witnessed on the ground — from real-time threat detection and incident response to the strategic collaboration shaping NATO’s cyber resilience in an increasingly contested digital landscape. Be sure to check out the rest of this three part series, you can find them below. Episode two can be found ⁠here⁠. Episode three can be found ⁠here⁠.