The medusa ransomware group listed Real Estate Systems Integrator on its data leak site on 2023-06-25. Country: US Sector: Professional Services Claim as published on the leak site: RESI was established in 1994 with the purpose of providing REALTORS® with the technology necessary to enhance productivity and broaden their reach. The main office of the company is located at: 560 Lincoln Rd Ste 203, Miami Beach, Florida, 33139, United States