Every public data breach

47 disclosed this week · 26,367 on record

Cleveland Clinic Foundation

Disclosed Dec 14, 2018604 affectedConfirmed

Official notice

Cleveland Clinic Foundation, the covered entity (CE), reported that a password-protected and encrypted hard drive was lost or misplaced. The hard drive contained the protected health information (PHI) of 604 individuals. The PHI involved included names, addresses, Social Security numbers, and treatment information. The CE notified HHS, affected individuals, and the media. The CE also conducted an exhaustive search in an effort to locate the missing hard drive. In its mitigation efforts, the CE sanctioned the responsible employee and implemented additional administrative safeguards to better protect its data.

What is known

People affected604 (as reported to HHS)
DisclosedDec 14, 2018
HappenedFeb 23, 2018
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to lost-deviceby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
104 to 604by backfillSource
summary2026-09-25
empty to Cleveland Clinic Foundation, the covered entity (CE), reported that a password-protected and encrypted hard drive was lost or misplaced. The hard drive contained the protected health information (PHI) of 604 individuals. The PHI involved inby 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.

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