The storm ransomware group listed City of Mitchell on its data leak site on 2026-08-24. Country: US Sector: Government & Defense Domains named: cityofmitchellsd.gov Claim as published on the leak site: Mitchell is a city in and the county seat of Davison County, South Dakota, United States. Mitchell is the principal city of the Mitchell Micropolitan Statistical Area, which includes all of Davison and Hanson counties. The company headquarters is located in 612 N Main Street, Mitchell, SD 57301, United States. 51-200 Employees