American Board of Preventive Medicine

An unauthorized actor spent March 8 to 10, 2026 inside the American Board of Preventive Medicine's network and left with names and possibly health or medication data; the filing names no entry point and no count of victims. Reports link the Genesis ransomware group to the organization around May, a date the March window leaves unexplained. Three days of access took six and a half months of manual review to inventory, which says the network never knew what it was holding.