Russia's Yandex says nearly 3% of cloud customer data lost after attacks

Yandex has admitted it cannot restore access to nearly 3% of customer data stored in its Yandex Cloud following attacks by Ukrainian forces on its data centers. Engineers have managed to restore access to 97.16% of customer data, but the remaining 2.84% cannot be recovered due to critical damage to equipment and lack of backups.

The lost data could amount to around 100,000 terabytes and tens of millions of files. Ukraine launched attacks on Yandex's data centers in October, targeting three of the company's six data centers located in Sasovo, Kaluga, and Vladimir. Replacing the damaged equipment at Yandex's data centers is estimated to take about six months.

After the attacks, Yandex relocated its supercomputers to a new location and lowered its annual revenue forecast.