A ransomware attack on the University of Hawaii Cancer Center's Epidemiology Division compromised data for nearly 1.2 million individuals. The stolen information includes Social Security numbers, driver's license numbers, and health data from several research studies, primarily historical files from the 1990s and early 2000s. The university paid the attackers for a decryption tool and to secure the destruction of the stolen data. The incident was isolated to research systems and did not impact clinical operations, patient care, or student records.