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# Second Yandex Data Center Hit in Kaluga as Drone Strikes Reach a Day-Two Target
- URL: https://www.battlepolicy.com/second-yandex-data-center-hit-in-kaluga-as-drone-strikes-reach-a-day-two-target/
- Published: 2026-10-09T14:22:30.000Z
- Updated: 2026-10-09T14:22:30.000Z
- Description: Yandex says drones disabled several modules at its Kaluga data center, a day after Sasovo shut down, leaving it three untouched sites.
- Author: Marcus Schuler
- Tags: Russia, Ukraine, drones, #daily-brief, Yandex

*Yandex has lost modules at a second site in two days, and an analyst says the room to shift load shrinks with each strike.*

Drones damaged Yandex's data center in Russia's Kaluga Oblast overnight on Oct. 9, completely disabling several modules, [the company said](https://kyivindependent.com/second-russian-yandex-data-center-damaged-by-drone-attack-in-two-days-company-says/?ref=battlepolicy.com). It came a day after the Sasovo hub in Ryazan Oblast shut down.

Some services may be disrupted, Yandex warned. It is still assessing the damage and reported no injuries at the facility. Ukraine has not publicly confirmed responsibility, the Kyiv Independent noted.

Frequently Asked Questions

Which Yandex data center was hit on Oct. 9? 

Yandex's facility in Kaluga Oblast. The company said several modules were completely disabled, per the Kyiv Independent, and that the full damage was still being assessed.

How does this relate to the Sasovo strike? 

A drone attack on Oct. 8 shut Yandex's Sasovo hub in Ryazan Oblast, where two of its three AI supercomputers sit, Reuters reported. Kaluga is the second site hit in two days.

Has Ukraine claimed the Kaluga attack? 

No. The Kyiv Independent noted that Ukraine has not publicly confirmed responsibility. President Zelensky said on Oct. 8 that Ukraine responds “in mirror-like fashion” to Russian strikes on its data centers.

Can Yandex shift the load to other sites? 

Partly. Analyst Maryana Lazaricheva of T-Investments told Reuters that Yandex could redistribute some of the load, but that the option vanishes if the attacks continue.

How many data centers does Yandex have left? 

Yandex operates five, per publicly available information cited by Reuters. Three are untouched: two near Moscow and one in Vladimir.

AI-generated summary, reviewed by an editor. [More on our AI guidelines](https://www.battlepolicy.com/ai-guidelines/).

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Below this point

6 more sections.

Yandex presented the planned Kaluga site in 2022 as its largest data center in Russia, [UkrMedia](https://ukrmedia.news/en/world/ataka-data-tsentr-yandex-kaluga-9-zhovtnia/?ref=battlepolicy.com) wrote. The design called for 63 megawatts of electrical capacity and more than 3,800 server racks, mainly for Yandex Cloud. UkrMedia said neither the number of disabled modules nor a full shutdown of the site had been confirmed.

Yandex shares fell 3.75%, the biggest drop on the Moscow Exchange, [Reuters](https://whbl.com/2026/10/09/russias-yandex-says-second-data-centre-hit-by-drone-attack/?ref=battlepolicy.com) reported. T-Investments equity research head Maryana Lazaricheva said the risks reach lost revenue and Yandex's business customers, not only temporary outages.

Yandex said its technology helps hundreds of thousands of companies run their businesses, and that millions of users rely on its apps. The company said it is working around the clock to restore services but could not give a timeline for restoring equipment at the data centers, Meduza reported.

Reuters counted five Yandex data centers from public information. Two have now been hit. Of the other three, two are near Moscow and one is in Vladimir.

Russia has struck Ukrainian data centers and telecommunications links over the past month, including in central Kyiv. One attack cut internet access for 100,000 households. President Volodymyr Zelensky said on Oct. 8 that Ukraine responds in "mirror-like fashion." "We are responding. I can't share all the details."

Lazaricheva said Yandex could shift some load to its other sites. If the strikes continue, she said, that option disappears. Yandex has three data centers left.