Exclusive-North Korean hackers breached top Russian missile maker

FILE PHOTO: North Korean leader Kim Jong Un and Russia's Defense Minister Sergei Shoigu visit an exhibition of armed equipment on the occasion of the 70th anniversary of the Korean War armistice in this image released by North Korea's Korean Central News Agency on July 27, 2023. KCNA via REUTERS/File Photo

LONDON/WASHINGTON (Reuters) - An elite group of North Korean hackers secretly breached computer networks at a major Russian missile developer for at least five months last year, according to technical evidence reviewed by Reuters and analysis by security researchers.

Reuters found cyber-espionage teams linked to the North Korean government, which security researchers call ScarCruft and Lazarus, secretly installed stealthy digital backdoors into systems at NPO Mashinostroyeniya, a rocket design bureau based in Reutov, a small town on the outskirts of Moscow.