Skip to content

Medical Mutual of Ohio

Disclosed Sep 15, 20179 years ago6,119 affectedConfirmed

Official notice

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.

What is known

People affected6,119 (as reported to HHS)
DisclosedSep 15, 2017
AttackInsider
Data exposedNames, Health
SectorInsurance · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Medical Mutual of Ohio (Health Plan, OH)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalSep 15, 20176,119

Other breaches at Medical Mutual of Ohio

BreachAffected
Disclosed Aug 17, 2022Aug 17, 20224 years agoHacking1,377
Disclosed Dec 6, 2013Dec 6, 201312 years agoInsider1,420
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

Everything about Medical Mutual of Ohio

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.