{"slug": "yandex-says-a-second-data-center-was-hit-by-drones-in-two-days", "title": "Yandex says a second data center was hit by drones in two days", "summary": "Yandex confirmed on October 9, 2026 that drone strikes disabled modules at its Kaluga data center, one day after an October 8 attack sparked a fire and halted operations at its Sasovo facility in the Ryazan region. The Sasovo site houses two of the three supercomputers Yandex uses to train YandexGPT, named Lyapunov and Chervonenkis, and the disruption affected clients including Russian Railways and MegaFon. Yandex shares fell approximately 4% on the Moscow Exchange after the second attack, while Kaluga Governor Vladislav Shapsha said nine people were injured in regional drone strikes on the nights of October 8 and 9.", "body_md": "Photo: panumas nikhomkhai / Pexels\n\n# Yandex says a second data center was hit by drones in two days\n\nRussia's largest tech company reports modules disabled at its Kaluga facility, one day after a strike halted operations at its Sasovo site\n\nYandex, Russia’s dominant technology and AI company, says a drone attack has disabled modules at its data center in the Kaluga region.\n\nThe Kaluga incident, confirmed on October 9, 2026, followed an October 8 strike on Yandex’s facility in Sasovo, in the Ryazan region. That earlier attack sparked a fire and brought operations there to a complete stop.\n\n## What got hit, and how big it is\n\nKaluga is not a minor outpost. It is Yandex’s largest data facility.\n\nThe site covers approximately 130,000 square meters. It supports more than 3,800 server racks and was designed for a capacity of 63 megawatts.\n\nYandex reported no casualties from the attacks. The research describes the Kaluga center as severely damaged, with Yandex stating that modules at the facility were knocked offline.\n\nKaluga Governor Vladislav Shapsha said nine people were injured during regional drone strikes on the nights of October 8 and 9. He did not say whether any of those injuries were connected to the Yandex site.\n\n### AI, tech, and the markets they move—in one daily briefing.\n\nDaily. Free. Join 34,000+ readers across crypto, finance, and policy.\n\n## The Sasovo strike and the AI problem\n\nThe Sasovo facility houses two of the three supercomputers the company relies on to train YandexGPT, its flagship AI model. The machines are named Lyapunov and Chervonenkis.\n\nThe fire at Sasovo halted operations entirely. Yandex has not provided a timeline for when the site might return to service.\n\nThe disruption also reached beyond Yandex itself. Major clients, including Russian Railways and mobile operator MegaFon, were affected after the Sasovo attack.\n\n## Market reaction and the broader conflict\n\nInvestors noticed. Yandex shares fell approximately 4% on the Moscow Exchange after news of the second attack broke.\n\nUkrainian President Volodymyr Zelensky framed the drone strikes as retaliation. He characterized them as a response to Russian military actions targeting data centers in Ukraine.\n\n**Disclosure:** This article was edited by Diego Almada Lopez. For more information on how we create and review content, see our\n\n[Editorial Policy](https://cryptobriefing.com/editorial-policy/).", "url": "https://wpnews.pro/news/yandex-says-a-second-data-center-was-hit-by-drones-in-two-days", "canonical_source": "https://cryptobriefing.com/yandex-second-data-center-drone-attack/", "published_at": "2026-10-09 09:48:02+00:00", "updated_at": "2026-10-09 09:51:33.834557+00:00", "lang": "en", "topics": ["ai-infrastructure", "artificial-intelligence", "large-language-models"], "entities": ["Yandex", "Kaluga data center", "Sasovo data center", "YandexGPT", "Lyapunov", "Chervonenkis", "Russian Railways", "MegaFon"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/yandex-says-a-second-data-center-was-hit-by-drones-in-two-days", "markdown": "https://wpnews.pro/news/yandex-says-a-second-data-center-was-hit-by-drones-in-two-days.md", "text": "https://wpnews.pro/news/yandex-says-a-second-data-center-was-hit-by-drones-in-two-days.txt", "jsonld": "https://wpnews.pro/news/yandex-says-a-second-data-center-was-hit-by-drones-in-two-days.jsonld"}}