Second Russian Yandex data center damaged by drone attack in two days, company says
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A drone attack damaged a Yandex data center in Russia's Kaluga Oblast overnight on Oct. 9, disabling several modules at the facility and threatening further disruptions to the company's services.
Several modules of the data center were completely disabled, Yandex said in a statement carried by pro-government Russian newspaper Vedomosti.
"Some Yandex services may experience disruptions as a result," the company said, adding that the full extent of the damage was still being assessed.
Yandex reported no injuries at the facility.
The attack came as drones struck other parts of Kaluga Oblast overnight, injuring nine people, regional Governor Vladislav Shapsha said. He also reported damage to houses in two districts of the oblast. Russian authorities claimed to have shot down 26 drones over the region.
Ukraine has not publicly confirmed responsibility for the attack on the Kaluga data center.
The strike marks the second reported attack on a Yandex data center in Russia in two days.
On Oct. 8, a drone attack caused a fire at a major Yandex data center in Sasovo, Ryazan Oblast, forcing the facility to suspend operations and disrupting parts of Yandex's cloud infrastructure.
The Sasovo facility houses tens of thousands of servers and two of the company's three supercomputers used to develop artificial intelligence models. Yandex said it was still assessing whether damaged equipment could be restored.
The attack coincided with reports of widespread internet disruptions across Russia, affecting banking services, transport websites, and online platforms.
Responding to questions about the Sasovo strike on Oct. 8, President Volodymyr Zelensky said Ukraine would continue retaliating against Russian attacks on Ukrainian data centers.
"We certainly are capable," Zelensky said. "We always respond in kind. Regarding data centers, as you all know, they have been and still are striking our data centers."
"We responded to them," he added. "I cannot share all the details."
Russian forces struck several Ukrainian internet providers and data centers in Kyiv in late September, disrupting internet access for approximately 100,000 households, according to Ukrainian officials.
