The University of Hawaii is confronting the fallout from the 2025 UH Cancer Center cyberattack. The breach affected research systems at the University of Hawaiʻi Cancer Center and potentially exposed sensitive personal data, including Social Security numbers and driver’s license numbers, collected decades ago for epidemiological research. 

According to an official report, the discovery of the data exposure occurred in December 2025. However, the cybersecurity incident itself was first identified on or about August 31, 2025. The ransomware attack was isolated to specific servers supporting research operations at the Cancer Center. 

The University of Hawaii confirmed that the UH Cancer Cente...