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North Korean state-sponsored APT groups 'Ruby Sleet' and 'Diamond Sleet' compromised two arms manufacturers in Germany and Israel beginning in November 2022 · 01.11.2022
The North Korean state-sponsored APT groups 'Ruby Sleet' (fka. 'Cerium') and 'Diamond Sleet' (fka. 'Zinc') compromised two arms manufacturers in Germany and Israel during the period of November 2022 to January 2023, Microsoft detailed in a technical report on Chinese and North Korean cyber activity published on 1 September 2023. The report further assesses that the North Korean government assigned multiple threat actors to meet high priority collection requirements for its own military capabilities.