HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice
Posted on the HHS Office for Civil Rights breach portal with a submission date of March 18, 2022.
- Organization as reported
- Cancer and Hematology Centers of Western Michigan, MI
- Entity type as reported
- Healthcare Provider
- Category as reported
Hacking/IT Incident
- Location of information as reported
- Network Server
- Submission date
- March 18, 2022
- Observed by BreachRecords
- 2026-10-18 16:15 UTC (revision 11564, row:2703)
- Archived copy
- Held in the private archive (provenance)
Cancer and Hematology Centers of Western Michigan, the covered entity (CE), reported that it experienced a ransomware attack that affected the protected health information (PHI) of 43,071 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, financial information, and diagnoses and conditions. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE provided complimentary credit monitoring to affected individuals and implemented multi-factor authentication and additional technical safeguards.