Hackers claim they stole 250 GB of sensitive naval system data from Russian contractor NPO Mars.

Attackers announced on a data-leak forum that they breached NPO Mars, a Russian defense firm responsible for automated control and command systems across the navy, ground forces, and armored vehicles. They say the haul includes technical manuals and software for naval platforms such as the SIGMA combat information system and the DIEZ minesweeper control suite. The breach, if confirmed, could expose key military capabilities; NPO Mars has not yet issued a public response.

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https://cybernews.com/security/russian-defense-contractor-mars-breach-navy/