In Ukraine, the internet has become the major front of defence against the Russian invasion. It is how the military informs Ukrainians about incoming Russian attacks, how humanitarian aid is organized, how cyber vigilantes are brought together, and how the rest of the world learns about the war. It has become Ukraine’s most prominent weapon, dominating the narrative of the war and resisting Russian disinformation. The internet is also the way Western companies like Microsoft have been able to analyse and patch vulnerabilities in Ukraine’s networks, creating an effective defence against Moscow’s cyber attacks. Many experts have been asking why Russia has not tried to destroy Ukraine’s internet infrastructure.