Yandex reports permanent loss of 2.84% of customer data after strikes

Russian cloud operator Yandex says drone attacks on its datacentres caused the loss of 2.84 per cent of customer data. The attacks also disrupted cloud and payment services, raising questions about the resilience of the company’s infrastructure while the war with Ukraine continues.

Yandex said it restored more than 97 per cent of customer data after an October fire and subsequent strikes on three locations. It blamed the loss on critical hardware damage and insufficient backups, and will now enable backups by default for new virtual machines, which may increase customers’ costs unless they opt out. The company has also opened a new availability zone at an undisclosed location, but it has resource quotas and cannot yet support traffic to private endpoints there.