Hackers claim leaked Russian data reveals up to 450,000 war-related deaths in Ukraine

Hacker groups Belarusian Cyberpartisans and Silent Crow claim leaked data from Russia's Rosstat indicates between 394,000 and 450,000 war-related deaths in Ukraine. They accessed Rosstat's Demography database, revealing death records from February 2022 to August 2026. Belarusian Cyberpartisans estimate at least 393,881 deaths linked to military operations, while Silent Crow's broader methodology suggests up to 450,100 deaths, including non-combat fatalities. The authenticity of these figures remains unverified. Rosstat acknowledged cyberattacks but denied any data breach. Independent assessments of Russian military casualties are challenging, with Mediazona reporting 285,881 deaths as of November 6, indicating the actual toll may be higher.