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● LIVE Updated 1h ago · 16 sources tracked

Hacked Records Show 400,000 Russians Killed in War on Ukraine

Hackers breached Russia's Federal State Statistics Service (Rosstat) and stole 23 terabytes of data, including death certificates linking nearly 400,000 Russian fatalities to the Ukraine war between February 2022 and August 2026. Multiple outlets analyzing the leak report approximately 392,700 war-related deaths, while The Moscow Times cites separate Rosstat leaks indicating 450,000 deaths with an accelerating mortality rate. Rosstat confirmed the cyberattack but has not verified the casualty figures. The Russian government classifies military losses as a state secret.

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⚡ Key Developments & Real-Time Context
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  • ✓ Hackers stole 23 terabytes of data from Rosstat, including death certificates.
  • ✓ Analysis of the leaked records shows nearly 400,000 Russian deaths linked to the war in Ukraine from February 2022 to August 2026.
  • ✓ Rosstat confirmed it suffered a major cyberattack and is struggling to restore systems.
  • ✓ The Russian government treats military losses as a state secret.
🛡️ Source Corroboration: 16 independent reporting domains (88% confidence) ⏱ Read time: ~2 min

What changed

A 23 TB cyberattack on Rosstat yielded death certificates that multiple independent analyses converge on roughly 400,000 Russian war deaths through August 2026.

Live updates

  1. Hacked Rosstat data shows ~400,000 Russian war deaths in Ukraine

    Hackers breached Russia's Federal State Statistics Service (Rosstat) and stole 23 terabytes of data, including death certificates linking nearly 400,000 Russian fatalities to the Ukraine war between February 2022 and August 2026. Multiple outlets analyzing the leak report approximately 392,700 war-related deaths, while The Moscow Times cites separate Rosstat leaks indicating 450,000 deaths with an accelerating mortality rate. Rosstat confirmed the cyberattack but has not verified the casualty figures. The Russian government classifies military losses as a state secret.

    Why it matters

    Russia has not released official military death tolls since the invasion began, making independent estimates critical for understanding the war's human cost. The Rosstat breach provides the first large-scale documentary evidence from Russian administrative records. Previous estimates from Western intelligence and open-source groups varied widely, often ranging between 200,000 and 350,000 killed.

    What is confirmed

    • Hackers stole 23 terabytes of data from Rosstat, including death certificates.
    • Analysis of the leaked records shows nearly 400,000 Russian deaths linked to the war in Ukraine from February 2022 to August 2026.
    • Rosstat confirmed it suffered a major cyberattack and is struggling to restore systems.
    • The Russian government treats military losses as a state secret.

    Still unconfirmed

    • Separate Rosstat leaks indicate 450,000 Russian deaths with an accelerating death rate.
    • Two hacking groups claimed responsibility for the Rosstat breach.

    What to watch next

    • Russian government response to the casualty figures
    • Independent verification of the death certificate data by demographers
    • Potential further leaks from the 23 TB dataset
    Sources used for this update (17)
    1. www.yahoo.com — Yahoo
    2. www.straitstimes.com — Oil edges lower following three days of gains
    3. euobserver.com — International Criminal Court wins EU’s top human rights prize in defiance of Trump’s sanctions
    4. www.deccanchronicle.com — Apple Launches Beta Versions of Watch AI Listening Tools, New Health App
    5. The Moscow Times — Official Data Shows 450,000 Russians Killed in War, Death Rate Accelerating – Rosstat Leaks
    6. Bloomberg.com — Hacked Records Show 400,000 Russians Killed in War on Ukraine
    7. The Telegraph — Russian data leak reveals death toll in Ukraine
    8. The Seattle Times — Russia’s Rosstat struggles to restore systems after major cyberattack
    9. Yahoo — Russian Federal State Statistics Service says it was hit by massive cyberattack — hackers steal 23TB of data, including Ukraine war casualty figures
    10. Euronews.com — Rosstat hack: data suggests over 390,000 Russian deaths in Ukraine war
    11. Seeking Alpha — Leaked records point to nearly 400,000 Russian war deaths in Ukraine (XAR:NYSEARCA)
    12. www.smh.com.au — Russia-Ukraine war deaths: Hacked Rosstat records reveal ...
    confidence 88%
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