Hacked records show 400,000 Russians killed in war on Ukraine

Our verdict

This is a balanced accountability news report centered on leaked civil records indicating about 400,000 Russian war deaths, with unusually thorough caveats and cross-checks. Its main strength is transparent treatment of uncertainty, including undercount risks, registration lags, and competing estimates from Russian, Ukrainian, and independent sources. Readers should keep in mind that authenticity was assessed by consistency checks rather than cryptographic proof and that Russia disputes any compromise of the database.

Why this lean

No US left/right framing, sourcing, or word choices push toward either US party; the story documents Russian military deaths using hacker-provided data while including Russian official denials, Ukrainian loss figures, western intelligence, and independent Russian trackers.

Framing

The story is told from the angle of independent accountability reporting: the central question is what hacked civil death records reveal about Russia's true war death toll despite Kremlin secrecy.

Key Findings

1. 1Headline-level figure of about 400,000 is presented as a rounded version of 392,700 explicitly war-linked certificates, not as a precise count, with repeated warnings that the dataset almost certainly understates deaths due to missing, unidentified, delayed, or miscategorized records.
2. 2Transparency about verification is a strength: the article states cryptographic authenticity could not be independently proved, then cites metadata consistency, no fabrication indicators, and approximate 0.1% and 0.2% differences in 2021-2022 totals and about 1% higher in 2023 versus official Rosstat figures.
3. 3Inconvenient context is included: Ukrainian losses via Zelenskyy's at least 55,000 figure, Ukraine's much higher 1.6 million Russian dead-plus-seriously-injured claim, registration lags, and patchier records from mid-2024 with nearly half of war deaths missing home region.
4. 4Russian official position is represented through Rosstat's compromise denial and noted non-response on losses, plus context that Rosstat stopped publishing many statistics after 2022 and that the 2022 partial-mobilization decree was never formally revoked.
5. 5Demographic detail supports the toll without overstating precision: examples include over 12,600 deaths among men 50-59 in first half of 2025 versus 146 in first half of 2022, about two-thirds of deaths among men 18-29 war-related, and about one-third versus about one in 10 regional disparity between remote Siberian republics and Moscow/St. Petersburg.

Who gets a voice

• Silent Crow and Cyber Partisans

  Ukrainian hacker operation and Belarusian pro-opposition group that obtained the data
  Source claiming large Russian losses and successful Rosstat breachMain voice
• Rosstat

  Russian statistics agency
  Official Russian position denying database compromiseMain voice
• Independent Russian outlet Mediazona with BBC Russian Service

  Independent casualty trackers
  Corroborating high Russian death toll by nameMain voice
• Mediazona and Meduza

  Independent outlets using probate registry
  Separate estimate of about 352,000 deathsMinor voice
• Volodymyr Zelenskyy

  President of Ukraine
  Ukrainian official acknowledgement of at least 55,000 Ukrainian soldiers killedMinor voice
• Ukraine's General Staff, and Ukraine and western intelligence agencies

  Ukrainian and western official estimators
  Higher Russian loss claims including 1.6 million dead and seriously injured and 54,000 lost in OctoberMinor voice
• People familiar with the situation in the Russian military

  Anonymous sources
  Assessment that about 400,000 Russian war deaths is realisticMinor voice

Dimension Breakdown

Missing Perspectives

• On-record Russian Defence Ministry or Kremlin response on the casualty figure itself, beyond Rosstat's denial about the hack; matters because the central claim concerns state secrecy about losses.
• Named independent data-forensic reviewer or methodology detail for the export check; matters because authenticity explicitly could not be cryptographically proved.
• Direct perspective of bereaved families, registrars, or frontline medical staff on delays and missing records; matters for interpreting lags and undercount claims.

Key Facts

• According to the article, almost 392,700 death certificates between Feb. 24, 2022 and late August 2026 explicitly link fatalities to the war via coding or terms like “military operation,” “shelling” or “drones.”
• According to Silent Crow, its calculation including noncombat-related fatalities is about 450,000.
• According to the article, Putin made military losses in peacetime during special operations or war a state secret as far back as 2015, and Russia has not provided casualty figures since early months of the invasion.
• According to Rosstat, cited in the article, it detected targeted cyberattacks Oct. 29 to Nov. 1 but found no evidence databases were compromised or confidential information leaked.
• According to Zelenskyy in February to French media, at least 55,000 Ukrainian soldiers had been killed, with many missing.
• According to Ukraine and western intelligence agencies, Russia lost a record 54,000 troops killed or seriously wounded in October.
• According to Mediazona and BBC Russian Service tracking, 285,881 Russian deaths were identified by name as of this month; Mediazona and Meduza separately estimated about 352,000 through December 2025 from the probate registry.