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Medical Mutual of Ohio

Disclosed Aug 17, 20224 years ago1,377 affectedConfirmed

Official notice

The covered entity (CE), Medical Mutual of Ohio, reported that a vendor of its business associate (BA) experienced a ransomware attack affecting the protected health information (PHI) of 1,377 individuals. The PHI involved included names, addresses, dates of birth, and health information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the BA suspended its business relationship with the vendor.

What is known

People affected1,377 (as reported to HHS)
DisclosedAug 17, 2022
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalAug 17, 20221,377
Indiana AGresidents of INMay 9, 20233

Other breaches at Medical Mutual of Ohio

BreachAffected
Disclosed Sep 15, 2017Sep 15, 20179 years agoInsider6,119
Disclosed Dec 6, 2013Dec 6, 201312 years agoInsider1,420
History of this record
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: organization to hhs · backfill source
  • 2026-09-25 · records: 99 to 1377 · backfill source
  • 2026-09-25 · disclosed: 2023-05-09 to 2022-08-17 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), Medical Mutual of Ohio, reported that a vendor of its business associate (BA) experienced a ransomware attack affecting the protected health information (PHI) of 1,377 individuals. The PHI involved included names, a · backfill source
  • 2026-09-25 · added · backfill source

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

Everything about Medical Mutual of Ohio

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