In the winter of 2015, computer hackers working for the Russian government attacked Ukraine's power grid and switched off the lights and heat to more than 200,000 consumers.
원문출처 : https://www.cnn.com/2022/03/16/politics/russia-us-cyberattack-infrastructure-invs/index.html
원문출처 : https://www.cnn.com/2022/03/16/politics/russia-us-cyberattack-infrastructure-invs/index.html