Chollima Group tracks a North Korean IT worker cell using open-source data, photos, and logs discovered in an exposed Dropbox folder. The reporting places the cluster in Laos from roughly September 2021 to February 2024, with some members later appearing in Vladivostok, Russia, and connects the location to wider public reporting and sanctions involving Department 53 front companies. The source strengthens CTI on DPRK remote-worker revenue operations by documenting real-world staging locations, personnel movement, and operational infrastructure rather than malware delivery.