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McLaren Health Care notifies 743,000 patients
A 2024 ransomware attack exposed medical records and Social Security numbers.
- Organisation
- McLaren Health Care
- Disclosed
- 22 June 2025
- Affected
- 743,131
- Data
- SSNs, licences, medical records
- Attacker
- INC-linked
- Severity
- major
- Region
- Global
- Source
- CM Alliance monthly roundup ↗
Cite this
Nuffield Consulting, “McLaren Health Care notifies 743,000 patients”, The Daily Tech Wire outage & breach log, 22 Jun 2025. https://techwire.nuffieldconsulting.com/incidents/2025-06-22-mclaren-health-care-breach/ (retrieved 15 Nov 2026).
This entry summarises public reporting. Please also cite the original source: CM Alliance monthly roundup, https://www.cm-alliance.com/cybersecurity-blog/major-cyber-attacks-ransomware-attacks-and-data-breaches-of-june-2025.
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