{"schema":"postcutoff/event@1","as_of":"2026-10-08T23:45:00+02:00","url":"https://postcutoff.com/e/2026-10-08-drones-strike-yandex-sasovo-data-center/","md":"https://postcutoff.com/e/2026-10-08-drones-strike-yandex-sasovo-data-center/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"Adam Bicz","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-10-08-drones-strike-yandex-sasovo-data-center","date":"2026-10-08","date_precision":"day","short_title":"Drones hit Yandex's Sasovo data center, home to two of its AI supercomputers","deck":"First major attack on a Russian data hub of the war","takeaway":"On Oct 8, 2026 drones struck a Yandex data center in Sasovo, Ryazan region, starting a fire.","category":"hardware-compute","category_label":"Chips & compute","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Reuters: Drones hit Yandex data centre in first major attack on Russian data hub","url":"https://www.reuters.com/world/drones-hit-yandex-data-centre-first-major-attack-russian-data-hub-2026-10-08/","type":"press","group":"press","domain":"reuters.com"},{"n":2,"title":"US News (Reuters): Drones hit Yandex data centre in first major attack on Russian data hub","url":"https://www.usnews.com/news/world/articles/2026-10-08/drones-hit-yandex-data-centre-in-first-major-attack-on-russian-data-hub","type":"press","group":"press","domain":"usnews.com"},{"n":3,"title":"Meduza: Ukraine strikes Yandex data center housing two of the company's supercomputers","url":"https://meduza.io/en/feature/2026/10/08/ukraine-strikes-yandex-data-center-housing-two-of-the-company-s-supercomputers","type":"press","group":"press","domain":"meduza.io"},{"n":4,"title":"The Moscow Times: Ukrainian drones hit Yandex data center after wave of Russian attacks","url":"https://www.themoscowtimes.com/2026/10/08/ukrainian-drones-hit-yandex-data-center-after-wave-of-russian-attacks-a93915","type":"press","group":"press","domain":"themoscowtimes.com"}],"official":0,"filed":"2026-10-08","updated":"2026-10-08","orgs":["Yandex"],"title":"Drones hit Yandex's Sasovo data center, home to two of its AI supercomputers: first major attack on a Russian data hub of the war","summary":"On Oct 8, 2026 drones struck a Yandex data center in Sasovo, Ryazan region, starting a fire. Yandex fully suspended the center's operations. It houses two of Yandex's three supercomputers used to train neural networks (\"Lyapunov\" and \"Chervonenkis\"). Reuters called it the first major attack on a Russian data hub since the 2022 invasion. It came weeks after Russian strikes on at least eight Ukrainian data centers.","key_facts":["Location: Sasovo, Ryazan region; fire confirmed (NASA fire monitoring, per The Moscow Times); no casualties reported","Yandex said operations at the center were fully suspended and some services might be unavailable; core consumer services were not affected (Reuters via US News/NBC)","Downdetector: 1,300+ reports of problems with Yandex Cloud, Documents and Tables; Meduza also lists Yandex Disk and sites such as Cian and Russian Railways","Supercomputers at Sasovo: Lyapunov and Chervonenkis (Chervonenkis was No. 19 on the TOP500 in 2021); the third, Galushkin, is in Vladimir (Meduza)","Yandex shares fell 3.4% in morning trading (The Moscow Times)","Ukraine had not officially commented (Meduza). Since late September, Russian strikes damaged or destroyed data centers of at least eight companies in Ukraine; Russia's Defense Ministry said they processed intelligence data for Ukraine's armed forces"],"key_numbers":[],"tags":["data-centers","war","ukraine","russia","supercomputers","infrastructure"],"science":null,"body_md":"## What happened\n\nThe strike was part of an overnight wave in which Russia said it intercepted 399 Ukrainian drones over 18 regions; refineries in\nBashkortostan and Omsk were also hit. Meduza notes it is unclear whether the data center or a nearby plant was the intended target.\n\n## Why it matters\n\nAI compute has become a military target on both sides of the war. Losing Sasovo takes most of Yandex's training supercomputing offline,\nwhich affects Russia's main domestic model developer.","disputed":[],"related":[{"id":"2026-09-21-yandex-aliceai-foundation-80b-open-weights","url":"https://postcutoff.com/e/2026-09-21-yandex-aliceai-foundation-80b-open-weights/","date":"2026-09-21","date_precision":"day","short_title":"Yandex open-sources AliceAI-Foundation-80B-A3B-Base, an 80B/3B-active MoE trained from scratch (Apache 2.0)","deck":null,"takeaway":"It is the most capable open-weights model from a Russian lab so far and adds a strong Russian-language base model under a permissive license.","category":"open-source","category_label":"Open source","importance":2,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":3,"official":2,"filed":"2026-09-30","updated":"2026-09-30","orgs":["Yandex"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-10-08","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-10-08","run":null,"sources_read":null,"updated":"2026-10-08","human_review":null,"version":{"date":"2026-10-08"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":161,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":100,"in_training_data":false},{"model_id":"gemini-3-8-flash","name":"Gemini 3.8 Flash","cutoff":"2026-03","days_after":191,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":130,"in_training_data":false}],"short_url":null}