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What the alleged Rosstat leak says about Russian deaths in the Ukraine war
The groups claim records show 393,881 to 450,100 deaths on Russia’s side of the war through August 2026, but the alleged database leak and both totals remain unverified. Cyber Partisans count deaths attributed to military operations or their consequences; Silent Crow’s broader count reportedly includes other death c...
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Key takeaways
- The groups claim records show 393,881 to 450,100 deaths on Russia’s side of the war through August 2026, but the alleged database leak and both totals remain unverified.
- Cyber Partisans count deaths attributed to military operations or their consequences; Silent Crow’s broader count reportedly includes other death categories.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What do Silent Crow and the Belarusian Cyber Partisans claim their alleged Rosstat “Demography” database leak reveals about deaths on Russia. Article summary: Silent Crow and the Belarusian Cyber Partisans claim that an alleged Rosstat leak indicates roughly 394,000–450,000 deaths on Russia’s side of the Ukraine war from February 2022 through August 2026; these are hackers’ cl. Topic tags: general. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers, clickbait thumbna
Belarusian Cyber Partisans and Silent Crow say records from Rosstat, Russia’s statistics agency, point to between 393,881 and 450,100 deaths on Russia’s side of the war in Ukraine from February 2022 through late August 2026. The figures are claims based on data the groups say they obtained in a hack—not an independently authenticated death toll. 3
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The difference between the estimates appears to come largely from what each group counted. That matters: the higher number should not be read as a second, verified count of the same narrowly defined category.
Two estimates, different counting rules
Cyber Partisans say their total is 393,881 people killed through August 27, 2026. Their calculation used death-registration records that attributed deaths to military operations, their consequences, or wording linking a death to combat. 3
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Silent Crow reported 450,100 deaths. Its count was broader, with reporting on the groups’ methodology describing additional categories such as non-combat deaths among military personnel, deaths marked as terrorist attacks, and some deaths registered in Russia but occurring in Ukraine or occupied territory when the precise cause was unclear. 5
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The totals therefore do not describe identical sets of records. The available reports do not provide enough information to independently reproduce either group’s calculation or assess how the records were checked for completeness and duplication. 10
What the groups said about the Rosstat breach
On November 7, the groups publicly linked their casualty estimates to records they said came from Rosstat’s internal “Demography” system. They claimed to have taken about 23 terabytes of data. 5
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Rosstat acknowledged coordinated cyberattacks against its websites between October 29 and November 1. The agency disputed the hackers’ central claim, saying its databases had not been compromised and no information had been leaked, according to reporting on its response. 7
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The Moscow Times reported that messages from the groups appeared on Rosstat’s main website and regional portals. It also described the groups as banned in Russia as “extremist organizations”; the available reporting does not establish more about the legal basis or timing of those designations. 8
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An acknowledged cyberattack does not, by itself, confirm that the alleged database was stolen or that the figures drawn from it are accurate. Rosstat’s denial and the groups’ claims leave the data’s provenance disputed. 7
How much confidence should readers place in the totals?
Treat both numbers as unverified estimates. Reporting says the data had not been independently verified in full, and Rosstat denies that its databases were compromised. 7
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A report also describes a cross-check of a random sample of 50 names against open data. A check of that size may offer a limited point of comparison, but it cannot establish that hundreds of thousands of records are complete, correctly classified, or free of duplicates. The available excerpt does not specify the check’s results or enough about its method to assess it further. 13
The estimates also differ from other ways of counting deaths. One report put the BBC Russian service’s named-death list at 285,023; a named list and a count derived from an alleged civil-registration database have different methods and should not be treated as directly interchangeable. 52 Separately, a data file summarizing outside assessments lists a 500,000 estimate of Russian troops killed attributed to UK Chief of the Defence Staff Richard Knighton on September 11, 2026. That is a separate assessment, not confirmation of the Rosstat claim.
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What the available reporting does not establish
The sourced material supports the two headline estimates and the broad difference in their counting rules. It does not provide a reliable basis for annual totals, age patterns, regional rates, or either group’s end-of-2026 projection. Nor does it provide enough detail to compare the leak with Meduza and Mediazona’s inheritance-based estimate or to substantiate Janis Kluge’s analysis of its implications.
The Moscow Times also reported the claim that war had become Russia’s fourth-leading cause of death since 2022. The available excerpt does not show the underlying calculation or comparison, so that ranking should be treated as a reported claim rather than an independently confirmed conclusion. 8
The careful takeaway is narrower: the hackers say Rosstat records point to a very high death toll, with Cyber Partisans’ lower figure based on a more restricted set of cause-of-death categories. Until the alleged records and counting methods can be independently checked, neither 393,881 nor 450,100 should be presented as an authenticated official total. 3
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What is the short answer to "What the alleged Rosstat leak says about Russian deaths in the Ukraine war"?
The groups claim records show 393,881 to 450,100 deaths on Russia’s side of the war through August 2026, but the alleged database leak and both totals remain unverified.
What are the key points to validate first?
The groups claim records show 393,881 to 450,100 deaths on Russia’s side of the war through August 2026, but the alleged database leak and both totals remain unverified. Cyber Partisans count deaths attributed to military operations or their consequences; Silent Crow’s broader count reportedly includes other death categories.
Sources
reform.newsCyber Partisans Calculate Russia’s Losses Based on Hacked Rosstat Database
english.nv.uaHackers claim 450,100 killed in Ukraine based on alleged Rosstat leak
moldova1.mdRosstat leak points to 450,000 Russian war deaths
novayagazeta.euВзломавшие Росстат хакеры заявили, что на войне в Украине со стороны России погибли 400-450 тысяч человек