University of Hawai'i Cancer Center Data Breach
Last Updated on March 5, 2026
At A Glance
- What's Going On?
- Attorneys need to hear from people affected by the UH Cancer Center data breach as they investigate whether a class action lawsuit can be filed.
- What You Can Do
- If you believe your information may have been compromised in the UH Cancer Center data breach, fill out the form on this page to learn more about the investigation and how you can help.
- Does This Cost Anything?
- It costs nothing to get in touch or to talk to someone about your rights.
- What Can I Get?
- If filed and successful, a class action lawsuit could provide consumers with money for any harm resulting from the UH Cancer Center breach.
UH Cancer Center Data Breach: Lawsuit Investigation
Attorneys working with ClassAction.org are looking into whether a class action lawsuit can be filed in light of the UH Cancer Center data breach.
As part of their investigation, they need to hear from individuals who had their information exposed in the incident, including those who received notice of the UH Cancer Center data breach or otherwise believe they are affected.
UH Cancer Center Security Incident: What Happened?
The University of Hawaiʻi Cancer Center’s Epidemiology Division recently disclosed a cyberattack that occurred around August 31, 2025, potentially affecting approximately 87,493 Multiethnic Cohort (MEC) Study participants and around 1.15 million individuals from other records.
According to the notice posted to the UH Cancer Center website, the affected data primarily includes records collected in 2000 from the State Department of Transportation and voter registration records from 1998, used to recruit participants for research studies such as MEC. Files exposed in the University of Hawai'i Cancer Center data breach contained personal information such as SSNs, driver’s license numbers, the health-related data of study participants, and registry information.
Notification letters were sent to identified MEC participants on February 23, and the university is reaching out to others via email, public announcements, and a dedicated Cyberattack Information and Resource Website.
The UH Cancer Center, recognized by the National Cancer Institute, is the only designated research organization in the Pacific among 73 in the U.S.
What You Can Do After the UH Cancer Center Data Breach
If your information was exposed in the UH Cancer Center data breach, attorneys want to hear from you. You may be able to start a class action lawsuit to recover compensation for loss of privacy, time spent dealing with the breach, out-of-pocket costs, and more.
A successful case could also force UH Cancer Center to ensure they take proper steps to protect the information they were entrusted with.
Affected by the UH Cancer Center data breach? Fill out the form on this page today.
Take Action
If you believe your information was exposed in the UH Cancer Center data breach, fill out the form on this page to get in touch with us.
An attorney or legal representative may then reach out to you to explain more about this investigation and ask you a few questions.
Remember, there is no cost to get in touch, and you are under no obligation to take action after speaking to someone.
Published: March 5, 2026
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The information submitted on this page will be forwarded to Bryson Harris Suciu & DeMay PLLC who has sponsored this investigation.
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