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UH Cancer Center data breach affects nearly 1.2 million people

ID: 0146d368-3b02-5236-8a30-8111def96b31

STIX ID: report--0146d368-3b02-5236-8a30-8111def96b31

Feed Name: Bleeping Computer

Threat Score
82/100

Date Published: 2026-03-03

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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The University of Hawaii Cancer Center confirmed a ransomware intrusion of its Epidemiology Division (August 2025) that exfiltrated files containing names, Social Security numbers, driver’s license numbers and health-study data affecting roughly 1.15–1.2 million individuals; affected systems were encrypted, restoration was delayed, and the university reported paying the attackers for a decryption tool and purported destruction of stolen data.

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