Ukrainian Cyberattack Disables Russian Railways’ Main Website On June 8, Ukraine’s Defense Intelligence (HUR) Cyber Corps conducted a cyberattack that took down the primary website of Russian Railways (rzd.ru), disrupting its online services nationwide. The operation targeted the domain’s NS servers, which manage domain name resolution, rendering the site—and all associated subdomains—unable to convert domain names into IP addresses. As a result, mobile applications and other digital services linked to Russian Railways became inaccessible. Russian Railways confirmed the attack, reporting a sustained assault volume of 6 gigabits and 2.5 million requests per second. Ukrainian officials described the incident as a “nonstandard operation,” though no further technical details were disclosed. The disruption affected users across Russia, highlighting vulnerabilities in critical infrastructure amid ongoing cyber warfare between the two nations.