Every public data breach

47 disclosed this week · 26,367 on record

Magellan Healthcare

Disclosed Sep 17, 201955,637 affectedConfirmed

Official notice

Magellan Healthcare, the covered entity (CE), reported that its business associate (BA) experienced a ransomware attack. This case is duplicative of an investigation being conducted into the BA that affected multiple CEs. Therefore, this case is closed and consolidated into an existing investigation.

What is known

People affected55,637 (as reported to HHS)
DisclosedSep 17, 2019
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
records2026-09-25
50410 to 55637by backfillSource
disclosed2026-09-25
2020-06-12 to 2019-09-17by backfillSource
Added2026-09-25
First recordedby backfillSource

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

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