Bluesky Accounts Compromised in Russian Disinformation Campaign

A Russian state-linked influence operation, attributed to Social Design Agency and the Matryoshka campaign, hijacked hundreds of primarily dormant Bluesky accounts using credentials leaked from prior breaches to disseminate anti‑Ukraine propaganda; Bluesky removed 4,907 state-backed accounts in 2026 and emphasizes the compromises resulted from credential reuse rather than a platform breach.