Hackers Claim Leaked Rosstat Data Shows 450,000 Russian War Deaths

Belarusian cyber groups claim to have exfiltrated Rosstat data indicating 394,000–450,000 Russian deaths linked to the Ukraine war from Feb 2022 to Aug 2026, with annual fatalities rising from 19,000 in 2022 to over 182,000 in 2025, concentrated among men aged 30–49. The data is unverified and sourced from hacktivist groups, so reliability is uncertain. If accurate, it would represent a significant escalation in reported Russian casualties, potentially affecting domestic politics and military sustainability.

AI disclosure: Model-written summary of the source, not a verified fact. Check the sources. How Mosaic works