The lockbit3 ransomware group listed uprepschool.org on its data leak site on 2023-08-29. Sector: Education Domains named: uprepschool.org Claim as published on the leak site: University Prep’s two elementary schools (kindergarten – 5th grade) in Northeast Denver are tuition free public charter schools with a simple and clear mission – prepare every child for a four-year college degree and a life of opportunity.