Hacker groups claim Russian war dead exceed 390,000 after alleged Rosstat breach

Two hacker groups, Cyberpartisans BY and Silent Crow, claim to have infiltrated Rosstat, Russia's federal state statistics service, and extracted mortality records that point to massive military personnel losses in Ukraine. According to the groups' calculations, between 393,000 and 450,000 Russian service members have been killed since the full-scale invasion began. The groups maintain that their tally is drawn directly from internal files held by the Russian statistical agency, rather than external battle models or estimates. Neither the Russian government nor independent verification bodies have publicly confirmed the authenticity of the data or the methodology used to calculate the casualty figures from agency records.

Casualty figures from the Kremlin remain closely guarded state secrets, with Moscow having provided only sporadic and heavily restricted updates since the early stages of the invasion. If confirmed, a death toll exceeding 390,000 would represent a catastrophic demographic shock for modern Russia, far exceeding Soviet losses during the decade-long war in Afghanistan. Independent researchers and open-source intelligence analysts have consistently had to rely on probate registries, local obituaries, and excess mortality calculations to estimate combat deaths because official statistics are classified. The release illustrates the ongoing digital battle over information control, highlighting vulnerabilities in state registries and the persistent difficulty of establishing an accurate accounting of the war's human cost.

The European Union has issued no formal reaction to the hackers' claims, as European institutions do not independently audit battlefield casualties. European foreign policy officials and member states instead rely on internal intelligence summaries and NATO assessments when assessing the sustainability of Russia's war effort. Tracking the rate of Russian material and personnel losses remains critical inside European institutions, where member states evaluate the efficacy of existing sanctions and debate long-term financial and military assistance to Ukraine based on the estimated durability of Russia's armed forces.

Independent demographers, investigative outlets, and cybersecurity researchers will likely attempt to verify any raw data files released by the groups against known regional death patterns and public obituaries. Moscow is unlikely to acknowledge the figures directly, historically treating such leaks as Western-backed information warfare while maintaining criminal penalties for disclosing military losses. Meanwhile, the sheer scale of reported casualties will continue to shape international assessments of how long Russia can sustain offensive operations without enacting broader domestic mobilisation measures.