UH Cancer Center data breach affects nearly 1.2 million people

The University of Hawaii has confirmed that a ransomware gang stole the data of nearly 1.2 million individuals after breaching its Cancer Center’s Epidemiology Division in August 2025.

Founded in 1907, the University of Hawaii (UH) System operates 3 universities and 7 community colleges, as well as multiple campuses and research centers across the Hawaiian Islands. The UH Cancer Center has over 300 faculty and staff, as well as an additional 200 affiliate members.

On February 23, the UH Cancer Center sent notification letters to more than 87,000 people enrolled in its Multiethnic Cohort (MEC) Study between 1993 and 1996. The university is now also notifying all other potentially impacted individuals whose contact details were found (approximately 900,000 email addresses).

Read more at Bleeping Computer