Ukraine claims to have hacked secrets from Russia’s newest nuclear submarine

Ukraine’s Defence Intelligence agency (HUR) claims that its hackers have successfully stolen secret files and classified data on a state-of-the-art Russian nuclear submarine, the “Knyaz Pozharsky.”

The “Knyaz Pozharsky” is nuclear-powered ballistic missile submarine, that was commissioned into the Russian Navy’s Northern Fleet at a shipyard in Severodvinsk during a ceremony overseen by Russian President Vladimir Putin on 24 July 2025.

The submarine features advanced stealth facilities, designe