Editorial illustration for Ukrainian drones strike Yandex data centers in Russia, source says
Ukrainian Drones Hit Yandex Data Centers in Russia
Two of Yandex's five data centers went dark this week after Ukrainian drones hit facilities in the Sasovo and Kaluga regions on October 8 and 9, according to Reuters. Yandex runs Russia's dominant search engine and built the YandexGPT chatbot, earning it the nickname "Russia's Google." The strikes knocked out infrastructure the company needs to keep that chatbot and other services running.
The Sasovo site housed two of Yandex's three supercomputers used to train YandexGPT. Kaluga was the company's largest data center. A Ukrainian drone maker, Firepoint, said its FP-1 one-way attack drones took part in the Kaluga strike.
The timing isn't incidental. Russian drones have been pounding Ukrainian data centers since late September, cutting mobile and internet access for thousands of people across the country. Ukrainian officials are framing the Yandex hits as retaliation, matching infrastructure damage with infrastructure damage.
Yandex says no employees were hurt, though it has confirmed some service disruptions. Russian users have reported trouble reaching the Ivi streaming platform, T-Bank's banking app and Russian Railways' site, according to the independent outlet Meduza.
Ukrainian drone strikes have knocked out two of five data centers belonging to the Russian tech giant Yandex. The damage has left Yandex, known as “Russia’s Google” because it operates the country’s most popular search engine, struggling to maintain its AI chatbot and other online services.
Why this matters
Yandex isn't some side project. It runs the search engine most Russians use, plus a chatbot and cloud services that businesses there depend on. Losing two of five data centers isn't a rounding error, it's a real dent in the infrastructure that keeps a national tech company's AI products running. For those of us watching how AI companies plan for resilience, this is a live case study: Yandex built out multiple regional facilities, and it still couldn't absorb the loss of 40% of them without visible service strain.
There's a broader lesson here about treating data centers as front-line infrastructure now, not just backend plumbing. Russia has been hitting Ukraine's data centers and disrupting phone and internet service; Ukraine hit back at Yandex specifically. That's a tit-for-tat targeting pattern aimed squarely at the physical layer AI runs on.
Founders and researchers building on cloud infrastructure anywhere near contested regions should take note: redundancy plans that assumed peacetime failure modes, hardware outages, power loss, aren't built for drones. This war is rewriting what "infrastructure risk" means for AI companies, and Yandex just became the example everyone will cite.
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Common Questions Answered
Which Yandex data centers were targeted by Ukrainian drone strikes in October?
Ukrainian drones struck Yandex data centers located in the Sasovo and Kaluga regions on October 8 and 9, according to Reuters. These two facilities going dark represented 40% of Yandex's total five data center infrastructure across Russia.
How did the drone strikes impact YandexGPT's operations?
The Sasovo data center housed two of Yandex's three supercomputers that are essential for training YandexGPT, so the strike directly compromised the chatbot's infrastructure. The loss of these facilities has left Yandex struggling to maintain its AI chatbot and other online services that depend on that computational power.
Why is Yandex referred to as 'Russia's Google'?
Yandex operates Russia's dominant search engine that most Russians use, and it has also built the YandexGPT chatbot and cloud services that businesses depend on. The company's central role in Russia's internet and AI ecosystem earned it the comparison to Google's position in other markets.
What does this incident reveal about data center resilience planning for AI companies?
Despite Yandex building out multiple regional data centers across different locations, the company still could not absorb the loss of 40% of its infrastructure from the drone strikes. This demonstrates that even distributed data center strategies may be insufficient to maintain full operational capacity when facing significant physical infrastructure damage.
Further Reading
- Ukraine expands drone strikes on data centres owned by Russia's Yandex - Reuters
- Drones hit Yandex data centre in first major attack on Russian data hub - Reuters
- Russia’s internet giant Yandex halts operations at major data center after drone attack - CNBC
- Russian search engine Yandex struggles after Ukrainian strikes on data centres - BBC
- Ukraine takes aim at Russia’s AI data infrastructure - Al Jazeera
