NSHC's January 2023 monthly threat-actor report summarizes activity collected by the ThreatRecon team from December 21, 2022 to January 20, 2023. It observed 19 threat groups, with SectorA activity making up the largest share and targeting government and financial-sector personnel or systems most frequently. The report identifies SectorA01, SectorA05, and SectorA06 activity, including cryptocurrency-exchange job-offer malware used to steal system information and phishing against South Korean government, broadcasting, telecommunications, university, and other sectors.