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44 disclosed this week · 26,355 on record

Larsen Dental Care

Disclosed Apr 18, 20146,900 affectedConfirmed

Official notice

An unencrypted external hard drive containing the electronic protected health information (ePHI) of 6,900 individuals was stolen from a workforce member’s vehicle. The ePHI involved in the breach included names, addresses, dates of birth, email addresses, telephone numbers, dental records, medical history, health insurance numbers, and social security numbers. The covered entity (CE), Larson Dental Care LLC, provided breach notification to HHS, affected individuals and the media, and also posted notice online. Following the breach, the CE terminated the employment of the responsible workforce member. It also conducted a new risk assessment, implemented new security and privacy policies, including device and media control policies, and retrained staff. The CE improved safeguards by encrypting all computers and mobile devices containing ePHI and installing comprehensive security upgrades to its computer network. OCR obtained assurances that the CE implemented these corrective actions.

What is known

People affected6,900 (as reported to HHS)
DisclosedApr 18, 2014
HappenedMar 4, 2014
AttackLost or stolen device
Data exposedNamesSocial Security numbersHealthInsurancePayment cardsAddresses
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to lost-deviceby backfillSource
data_types2026-09-25
["names","ssn","health","insurance","payment-card","addresses","names"] to ["names","ssn","health","insurance","payment-card","addresses"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 6900by backfillSource
summary2026-09-25
empty to An unencrypted external hard drive containing the electronic protected health information (ePHI) of 6,900 individuals was stolen from a workforce member’s vehicle. The ePHI involved in the breach included names, addresses, dates of birth, eby backfillSource
Added2026-09-25
First recordedby backfillSource

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

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