McLaren Health Care (McLaren) disclosed a data breach that occurred between late July and August. The security breach exposed the sensitive personal information of 2,192,515 people.

McLaren Health Care is a nonprofit health care organization based in Grand Blanc, Michigan, USA. It is a $6.6 billion, fully integrated health care delivery system committed to quality, evidence-based patient care and cost efficiency. The McLaren operates 14 hospitals in Michigan, ambulatory surgery centers, imaging centers, a 490-member employed primary and specialty care physician network, commercial and Medicaid HMOs covering more than 732,838 lives in Michigan and Indiana, home health, infusion and hospice providers, pharmacy services, a clinical laboratory network and a wholly owned medical malpractice insurance company.