The University of Hawaii’s Cancer Center suffered a 2025 ransomware attack that encrypted and potentially exfiltrated historical research files, exposing Social Security numbers, driver’s license numbers, and voter registration data. The breach impacted research tied to the Multiethnic Cohort Study, prompted system shutdowns and engagement with the threat actors to obtain a decryption tool, and led to notifications and extensive security upgrades. #UHCancerCenter #MultiethnicCohortStudy
Keypoints
- The UH Cancer Center experienced a ransomware attack in 2025 that encrypted and potentially exfiltrated historical research files.
- Compromised files included names paired with Social Security numbers, Hawaiʻi driver’s license numbers, and voter registration information from the 1990s–2000s.
- The incident potentially affected 87,493 Multiethnic Cohort Study participants and up to 1.15 million individuals in historical records.
- The university disconnected affected systems, retained third-party cybersecurity experts, obtained a decryption tool, and initiated notifications to impacted people.
- UH deployed broad security enhancements, created new governance and task forces, and is offering credit monitoring and identity theft insurance to affected individuals.
Read More: https://thecyberexpress.com/uh-cancer-center-cyberattack/