Ukrainian President Volodymyr Zelensky spoke to the G20 Summit’s “Digital Transformation” panel this week, offering the benefits of his embattled country’s cyber-defense experience to G20-allied countries.

Zelensky noted that Ukraine’s “IT army,” made up of talent pooled from companies across the country, has successfully stopped more than 1,300 Russian cyberattacks over the past eight months of the Russian invasion. That experience, he said, offers lessons for protecting civilian populations from the kinds of brutal cyberattacks that have been leveled against his country as part of Russia’s invasion.