In October 2026, Yandex experienced a major infrastructure failure in Central Russia. Over a four-day period, three data centers located in Sasovo, Kaluga, and Vladimir went offline. The incident caused the Yandex Cloud platform to collapse and disrupted key ecosystem services, including Yandex Taxi and Yandex Direct.
The outage resulted in the loss of one week of data for several external clients. Additionally, the company's fintech division, specifically Yandex Pay and Split, remained inoperative for 11 days. During this period, the fintech services experienced issues with phantom charges, which required 11 days of manual balance reconciliation.
Technical analysis of the events between October 8 and October 22 suggests that the system had a 74-hour window between the initial and final impacts. Experts point to fundamental flaws in distributed system design, capacity management, and risk assessment at the C-level as the primary reasons for the prolonged recovery.
