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47 disclosed this week · 26,367 on record

Medical Mutual of Ohio

Disclosed Aug 17, 20221,377 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 exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Medical Mutual of Ohio

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
99 to 1377by backfillSource
disclosed2026-09-25
2023-05-09 to 2022-08-17by backfillSource
summary2026-09-25
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, aby backfillSource
Added2026-09-25
First recordedby backfillSource

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