the failure affected such runeto giants as yandex, vk, azon and valtberis, and large banks. vzbertinkovand many not so large companies, which is interesting, messengers, for example, telegram were not affected, users wondered what happened for about an hour, there were versions from cyber exercises to a hacker attack, about eight official comments were published by the ministry of digital development, it said that the problem connected with the dns sek infrastructure, and specialists are working to eliminate it, and an hour later, internet access was restored, that is, we were talking about one of the key elements in the structure... dns is a domain name system, roughly speaking, a constantly updated internet address book that translates human names -site, say, jandex.ru, an ip address understandable to machines, a set of numbers that no one can remember. and broken dns sec is an extension that is responsible for dns security so that no one can replace the domain name instead of the yandex server redirect the user to the scam address. and that’s where it happened in the key signing syst