The interlock ransomware group listed Winona County on its data leak site on 2026-05-01. Country: US Sector: Government & Defense Domains named: winonacounty.gov Claim as published on the leak site: Winona County is located in the Mississippi River blufflands of southeastern Minnesota. They have been negligent regarding security and the data they store, which has resulted in a breach and the public disclosure of all the confidential data they held. As a result, we are now able to offer you a large database containing resident records, tax and budget documents, police records, and data from other institutions.