Ukraine drone strike damages Yandex sites, Russian services go offline

The first strike came on October 8 at Yandex’s site in Sasovo, in the Ryazan region southeast of Moscow. A fire forced the facility to shut down. Sasovo matters more than most: it houses two of the three supercomputers Yandex uses to build YandexGPT, its answer to ChatGPT. It is still not clear whether those machines were damaged.

A day later, on October 9, drones hit the company’s Kaluga facility, its largest data center, and part of it went offline. A Ukrainian arms maker, Firepoint, said its FP-1 drones were used. These are one-way attack drones, meaning they are built to crash into their target.

On October 11 a third site, in the Vladimir region, was hit. This time Yandex said operations were “completely suspended.” Photos shared by independent Russian media showed fire and heavy smoke over the area. Yandex said no employees were hurt in any of the attacks.

Yandex is far more than a search engine. It runs ride-hailing, maps, payments and a big cloud platform that other businesses rent. When its servers go dark, a lot of everyday life goes with them.

• Rides and maps: Yandex Go, the company’s ride-hailing app, and Yandex’s navigation tools suffered wide outages.
• Money: Yandex Pay went down, and users reported trouble with T-Bank, a popular digital bank.
• Travel and TV: people struggled to use apps for the state rail company, Russian Railways, and the Ivi video streaming service, according to the independent Russian outlet Meduza.
• Businesses: Yandex Cloud kept running only with limited functions.

After the Vladimir strike, Yandex told cloud customers it considered its remaining setup “unstable” and advised them to switch to their own disaster recovery plans. That is a remarkable thing for a cloud provider to admit, and it shows how much capacity was lost.

Another strike on a Russian oil refinery in Omsk – one of the major refineries – as well as on the Ukhta oil refinery, 1,900 kilometers from Ukraine’s state border. The target in Ukhta was hit by An-196 RS drones, which can fly about 2,500 kilometers, while FP-6 drones (modified… pic.twitter.com/zjQk3nutVS

— Volodymyr Zelenskyy / Володимир Зеленський (@ZelenskyyUa) October 9, 2026

Websites can be moved to another data center within hours if the backup systems exist. Training an AI model is different. It needs huge clusters of specialized chips sitting together in one building, and those cannot be swapped in overnight.

The affected Yandex supercomputers include machines named Lyapunov, Chervonenkis and Galushkin. If they are badly damaged, YandexGPT could fall further behind American and Chinese rivals. Investors noticed: Yandex shares fell about 4% after the strikes. The company is worth roughly $16 billion and handles about 70% of all web searches in Russia.

The episode also exposes a weakness every tech giant shares. When most of your computing power sits in a handful of buildings, each one becomes a single point of failure. Losing three of five at once is the scenario disaster planners fear most.

Soon after the attacks, a claim went viral that Russia’s online bot army had suddenly gone quiet. Some European officials repeated it, and President Volodymyr Zelenskyy said in a speech that “everyone noticed” a drop.

The evidence is thinner than the headlines suggested. Much of the buzz was based on internet traffic data showing that automated requests from Yandex’s network had almost vanished by October 11. But most automated traffic from Yandex is ordinary search engine crawling, the software that scans websites so they show up in search results. Switching off the servers would stop that whether or not any propaganda account went silent. Cloudflare, the internet company whose data was used, later said its numbers do not appear to support the bot claim, though it could not rule out a link.

Ukraine’s Center for Countering Disinformation then published a report on October 15. It tracked 5,201 accounts it considered suspicious on Facebook and Telegram. On October 8, the day Sasovo went offline, their messages fell by 83.6%, from 4,032 to 660. Activity was back above normal by October 10, then dropped 42.6% again on October 12, the day after the Vladimir strike. The agency itself called the effect “substantial but short-lived,” and its data has not been independently checked. Zelenskyy’s office has since said he was describing the general mood on social media, not a measured fall in bots.

If you live in the US, UK or Canada, you almost certainly never touched a Yandex server, so nothing in your daily life changed. The bigger lesson is about how fragile digital services are when they depend on a few physical buildings.

Data centers are now treated as military targets, much like power plants and bridges. The Kremlin has reportedly told Russian operators to prepare for more drone attacks, and Ukraine’s own networks are still being hit. For ordinary users anywhere, the practical takeaway is simple: keep more than one way to pay, keep offline copies of documents you can’t afford to lose, and don’t assume a single app will always be there.

Yandex says it is restoring systems, but it has given no date for a full recovery of its cloud platform or AI work. Ukraine has made clear the strikes are a direct reply to Russian attacks on its own data centers, so more hits on digital infrastructure on both sides look likely while the campaign continues.