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44 disclosed this week · 26,355 on record

Clinical Reference Laboratory

Disclosed Apr 9, 20144,668 affectedConfirmed

Official notice

The covered entity (CE), Clinical Reference Laboratory, Inc. sent a parcel to Massachusetts Mutual Life that was opened and damaged during the mailing process by the United States Postal Services (USPS). The damaged parcel contained the protected health information (PHI) of approximately 864 individuals, including names, partial and full social security numbers, dates of birth, and clinical test codes. OCR received two other breach reports from the CE which involved the same or similar fact patterns as the breach report for this case. OCR consolidated these investigations into one breach compliance review. The CE investigated the breaches and concluded that the likelihood of misuse or further disclosure of the PHI was remote since the USPS confirmed that all unmatched pages were segregated and shredded. The CE provided breach notification to HHS, affected individuals, and notified appropriate authorities required by each jurisdiction that included an affected individual. The CE also offered affected individuals a free two-year subscription to credit monitoring services and credit report controls. Following the breach, the CE appointed a new privacy officer, who was required to comp

What is known

People affected4,668 (as reported to HHS)
DisclosedApr 9, 2014
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
disclosed2026-09-25
2015-03-03 to 2014-04-09by backfillSource
records2026-09-25
864 to 4668by backfillSource
disclosed2026-09-25
2015-04-28 to 2015-03-03by 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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