Event dates and reporting dates are separate. Ordered by the known event date; date ranges and unknown times are preserved.
- 5 September 2021
Yandex repelled the Mēris DDoS attack in 2021
The Mēris botnet attacked Yandex on 5 September 2021. Traffic peaked at 21.8 million requests per second. Yandex said it repelled the attack.
Reported: 9 September 2021
- January 2023; exact day not established here
Yandex acknowledged leaked code and partner data in 2023
On 30 January 2023 Yandex authenticated leaked code fragments. Its review found some partners’ information inside. The company said its initial analysis found no threat to service operation.
Reported: 30 January 2023
- Late July 2024; exact day unspecified
Sber reported repelling a 13-hour DDoS attack in July 2024
Sber reported an attack in late July 2024. It lasted more than 13 hours. The bank said customers did not notice it.
Reported:
- 8 October 2026
Yandex shut its Sasovo data centre and shifted workloads after an attack
Yandex shut its Sasovo data centre after an attack on 8 October. Yandex Cloud’s ru-central1-b group of servers hosting customer applications became unavailable. The operator reported shifting workloads.
Reported: 8 October 2026; article updated at 19:59 Moscow time
- 8 October 2026
Yandex could not confirm whether Sasovo equipment could be repaired
On 8 October Yandex told Reuters it was assessing fire damage in Sasovo. The data centre stopped and some services became unavailable. The company could not confirm whether equipment was recoverable.
Reported: 8 October 2026
- 8 October 2026
Zelenskyy said Ukraine had retaliated against Russian data centres
On 8 October Volodymyr Zelenskyy said Ukraine had responded to Russian strikes on its data centres. He did not list specific targets then. Reuters noted that he did not name Yandex.
Reported: 8 October 2026
- 8 October 2026
Curator fault disrupted news sites on 8 October
Curator reported a configuration error on 8 October. RBC, Kommersant and other sites loaded slowly or failed. The provider restored its network at 16:04 Moscow time.
Reported: 8 October 2026
- 8–31 October 2026
Yandex waived Cloud and Yandex 360 fees through the end of October
Yandex announced Cloud and Yandex 360 fee waivers on 13 October. Existing cloud customers would not pay for 8–31 October in Russian zones. Charges for that period would be corrected automatically.
Reported: 13 October 2026
- 8–15 October 2026
Are Yandex Music and BandLink experiencing problems
Musicians report delayed statistics and problems promoting releases on Yandex Music and BandLink. The service team links the restrictions to infrastructure damage and says plays are being preserved for settlements. As of the evening of 15 October, there is no exact date for full analytics recovery.
Reported: Joint statement on 13 October; feature status checked on 15 October
- 9 October 2026
Yandex reported damage to its Kaluga data centre on 9 October
Yandex’s Kaluga data centre was attacked on the morning of 9 October. The company said part of its infrastructure failed. Yandex gave no equipment-recovery timetable.
Reported: 9 October 2026
- 9 October 2026
Selectel, K2Cloud and VK Cloud are helping Yandex Cloud customers move services
On 9 October Yandex arranged help with Selectel, K2Cloud and VK Cloud. Affected customers were offered faster relocation of data and services. The providers assigned extra migration teams.
Reported: 9 October 2026
- 11 October 2026
Yandex Cloud entered emergency mode after the Vladimir attack
Yandex shut its Vladimir data centre after a drone attack on 11 October. Yandex Cloud declared emergency operation. The operator recommended restoring customer services at other sites.
Reported: 11 October 2026
- 11 October 2026
Yandex Pay outage blocked balances, payments and transfers
Many Yandex Pay customers lost access to funds on 11 October. Balance checks, payments and transfers failed. The service’s head said financial records were safe.
Reported: 11 October 2026
- 12 October 2026
Russia’s digital and defence ministries are addressing data-centre protection
On 12 October Maksut Shadayev reported work on protecting IT facilities. The digital ministry was addressing it with the defence ministry. He did not announce completed protection at specific data centres.
Reported:
- 13 October 2026
Yandex Pay restored cards and is bringing back transfers
Yandex Pay reported partial recovery on 13 October. Cards and contactless payment stickers worked fully. Transfers returned gradually, with errors still possible.
Reported:
- 13–14 October 2026
Yandex warned of fake emails promising to restore cloud data
After the data-centre attacks, Yandex warned about fraudulent emails. Senders offered data recovery, compensation or urgent migration. The company urged verification through official channels.
Reported: News report 13 October; official page updated 14 October
- 13 October 2026 — TechRadar report
TechRadar reports a fall in automated requests from Yandex’s network
On 13 October, TechRadar reported reduced software activity from Yandex’s network after data-centre strikes. The measurement concerns requests to external websites served by Cloudflare. The report does not identify which programs became less active.
Reported: 13 October 2026
- 14 October 2026
Sber confirmed a Saratov-region data-centre attack and said services worked normally
On 14 October Sber confirmed an attack on one of its data centres. The bank said all systems and services were operating normally. Its press office reported no employee injuries.
Reported:
- 14 October 2026
Yandex Cloud restored some AI services but retained restrictions
On 14 October Yandex Cloud reported partial AI-service recovery. Model responses and tools converting speech to text and back returned. Automated workflows and several other functions remained unavailable.
Reported: 14 October 2026
Yandex reopens Direct accounts; settings remain locked
On 15 October, Yandex reopened Direct advertising accounts. Advertisers can start existing campaigns, stop ads and add funds. Settings remain locked and statistics may be incomplete.
Reported: Yandex statement for 15 October in an updated RBC article
Yandex details Mail and Disk restrictions and offers free document editing
On 15 October, Yandex detailed restrictions affecting its work services. Mail device notifications and automatic Disk photo uploads remain unavailable. The company announced free access to desktop Documents.
Reported:
- Leak date undisclosed; disclosed 1 March 2022
Yandex Eats disclosed leaked orders and phone numbers in 2022
Yandex Eats disclosed a leak on 1 March 2022. Phone numbers and order details appeared online. The company said payment information and passwords were unaffected.
Reported: 1 March 2022
Russia’s digital infrastructure
Yandex, Sber and digital-service resilience: data-centre strikes, cyberattacks, outages and recovery.