The short version
- Ukrainian drone strikes have damaged or disabled three major Yandex data centers within days, disrupting cloud services and consumer applications across Russia.
- Russian commentators warn that the country's reliance on a few centralized nodes makes its digital infrastructure more vulnerable than Ukraine’s decentralized systems.
- Legal restrictions on foreign infrastructure usage prevent Russian tech firms from establishing resilient backups abroad, compounding the operational risks.
The conflict between Russia and Ukraine has expanded into the realm of critical digital infrastructure, with recent Ukrainian drone strikes targeting major data centers owned by Yandex. These attacks have caused widespread disruptions to essential online services within Russia, revealing significant vulnerabilities in the country’s centralized technological ecosystem. The strikes represent a strategic shift in retaliation, aiming to mirror the damage inflicted on Ukrainian telecommunications and power grids.
In late September, Russian forces initiated a campaign targeting Ukrainian data centers and mobile networks, causing temporary service interruptions for approximately 100,000 households in Kyiv. This offensive was part of a broader strategy involving missiles and jet-powered drones aimed at Ukraine’s energy infrastructure, transportation hubs, and residential areas. In response, Ukrainian President Volodymyr Zelenskyy characterized the subsequent attacks on Russian targets as a symmetrical measure designed to counter the degradation of Ukraine’s own digital capabilities.
The first major strike occurred on October 8, damaging a facility in the Sasovo region southeast of Moscow. This site housed two of Yandex’s three primary supercomputers used for training its artificial intelligence models. The Chervonenkis and Lyapunov supercomputers, which rank among the top global systems with computing performances of 29.42 and 20.03 petaflops respectively, were affected. While the extent of physical damage to the Nvidia A100 GPU chips remains unclear, the disruption highlights the concentration of high-value computational assets in specific geographic locations.
A second attack followed on October 9, striking a large data center in the Kaluga region southwest of Moscow. This facility, capable of handling up to 63 megawatts of power, is one of the largest in the country. The third strike occurred on October 11, forcing Yandex to suspend operations at its Vladimir facility east of Moscow. This site contained the Galushkin supercomputer, rated at 20.64 petaflops. The rapid succession of these incidents has effectively neutralized Yandex’s primary high-performance computing infrastructure within a matter of days.
The impact on Russian society extends far beyond artificial intelligence research. Yandex dominates the Russian digital landscape, controlling roughly 70 percent of the search engine market and providing critical cloud services to major corporations. The outages have disrupted payment applications, digital banking, email, e-commerce platforms, video streaming, ride-hailing, food delivery, and navigation services. Large grocery chains, fast-food restaurants, and appliance retailers that rely on Yandex’s cloud infrastructure have also experienced operational interruptions, affecting daily life for millions of users.
Russian commentators and military bloggers have expressed concern over the systemic risks posed by this centralization. Analysts note that Yandex’s monopoly-like position created a fragile dependency where the entire digital economy relies on a small number of physical nodes. This hyper-centralization, once considered a competitive advantage against Western counterparts, has emerged as a significant wartime liability. The concentration of infrastructure means that targeted strikes can produce disproportionate effects across multiple sectors simultaneously.
Compounding these vulnerabilities is Russia’s legislative framework regarding internet sovereignty. Laws passed in 2019 restrict Russian companies from utilizing foreign infrastructure, even in allied nations like Belarus or Kazakhstan, which lack the necessary capacity to host such large-scale operations. Sanctions from unfriendly countries further limit options for establishing backup systems abroad. Consequently, Russian tech firms face significant barriers to replicating their infrastructure outside domestic borders, leaving them exposed to localized physical threats.
The contrast with Ukraine’s digital architecture has also been noted by observers. Ukraine’s more decentralized approach to digital services may offer greater resilience against similar attacks. As the conflict continues, the ability of each side to maintain operational continuity will likely depend on how well their infrastructure can withstand and recover from targeted strikes. The current disruptions serve as a stark demonstration of the risks associated with concentrating critical digital assets in a few vulnerable locations.
Looking ahead, the long-term implications for Russia’s digital economy remain uncertain. Repairing or replacing damaged supercomputers and data centers will require significant time and resources, particularly given supply chain constraints and international sanctions. The incident underscores the growing importance of infrastructure resilience in modern warfare, where digital capabilities are as critical as traditional military assets. Future developments may see increased efforts to decentralize Russian IT infrastructure or adapt legal frameworks to allow for greater operational flexibility.
Sources behind this briefing
Go to the original reporting
- Ars Technica↗Russia was not ready for the data center war it started with Ukraine
