https://enovosty.com/news/news_abroad/full/911-pochemu-putinskij-agent-vypal-iz-okna-v-berline-smi
https://www.dw.com/ru/marat-gelman-problema-putina-pohozha-na-problemu-stalina/a-59758710
https://ru.krymr.com/a/rossiya-hakery-nobelium-mikrosoft-solarwinds/31532042.html
https://tyzhden.ua/%D0%A1%D0%B2%D1%96%D1%82/253450
https://www.nytimes.com/2021/10/25/us/politics/russia-cybersurveillance-biden.html
https://www.ng.ru/politics/2021-10-17/1_8279_kprf.html