- State
- OH
- Covered entity type
- Health Plan
- Individuals affected
- 6,119
- Business associate present
- No
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Medical Mutual of Ohio, reported that an employee inadvertently emailed the protected health information (PHI) of 6,119 individuals to the wrong email address. The PHI involved included names, addresses, dates of birth, Social Security numbers, health insurance information, clinical information, and treatment information. The CE notified HHS, affected individuals, the media, and provided complimentary credit monitoring and identity restoration services. Following the breach, the CE implemented additional administrative and technical safeguards to better protect its PHI. OCR obtained assurances that the CE implemented the corrective actions noted.
Change history
- 9/23/2026Added to OCR's archive list
Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source
Records are reproduced as published; entity names and figures are OCR's.