McKesson confirms breach after ShinyHunters claims patient data theft
Healthcare distributor McKesson disclosed a cybersecurity incident on August 31 after detecting an intrusion on August 25. The company said hackers accessed third-party applications and stole data, though the investigation is in early stages. ShinyHunters claimed responsibility and alleged theft of 284 million patient records, though McKesson has not confirmed the scope or said the incident is material to operations. [1]
Sources
[1] Help Net Security — https://www.helpnetsecurity.com/2026/08/31/healthcare-company-mckesson-data-breach/