Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

CardioNet

Disclosed Jan 10, 20121,300 affectedConfirmed

Official notice

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What is known

People affected1,300 (as reported to HHS)
DisclosedJan 10, 2012
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): CardioNet (Healthcare Provider, PA)

Notices filed

TotalJan 10, 2012
HHS archive1,300 people
TotalFeb 27, 2012
HHS archive728 people
History of this record
records2026-09-25
728 to 1300by backfillSource
disclosed2026-09-25
2012-02-27 to 2012-01-10by 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.

Everything about CardioNet