Leaked email datasets are used to profile DPRK IT worker tradecraft, with the source linking the activity to Microsoft’s Jasper Sleet classification and remote-work fraud against DApp, Web3, blockchain, and cryptocurrency companies. The analysis says 1,389 addresses were exposed on GoFile and highlights recurring use of Gmail, privacy-focused services such as Skiff and Proton, temporary email providers, developer-themed usernames, animal/color motifs, birth-year patterns, and recovery-email relationships. Several addresses reportedly overlap with Operation Endgame 2.0 and breached datasets such as CutOut Pro and infostealer log collections, suggesting the accounts were reused across operational services and exposed by commodity credential theft. The findings matter for hiring and access-control teams because DPRK operators can bypass traditional initial-access steps by obtaining legitimate developer roles, then gaining direct access to corporate systems and cryptocurrency production environments.