Laboratory Corporation of America Holdings
Disclosed Jul 13, 201910,251,784 affectedConfirmed
The covered entity (CE), Laboratory Corporation of America Holdings dba LabCorp, reported that its business associate (BA) Retrieval-Masters Creditors Bureau, Inc. – American Medical Collection Agency (AMCA), was the victim of a cyber-attack involving the protected health information (PHI) of 10,251,784 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, phone numbers, health insurance information, and treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. As a result of this breach, LabCorp terminated its business relationship with AMCA.
What is known
| People affected | 10,251,784 (as reported to HHS) |
|---|---|
| Disclosed | Jul 13, 2019 |
| Discovered | May 14, 2019 |
| Happened | Aug 1, 2018 |
| Attack | Hacking |
| Data exposed | NamesSocial Security numbersPayment cardsFinancialHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Laboratory Corporation of America Holdings
History of this record
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.