HackingHealthcareIdentity (basic)Government IDFinancial accountCriticalContained

LABORATORY CORPORATION OF AMERICA HOLDINGS

bd_af36a8d2ef226739 · schema v1 · pii pii-v1

Severity

Critical

Discovered

May 14, 2019

Filed

Jul 15, 2019

To disclose

9 weeks

Affected

366,110state residents only

Linked

8 filings

Confidence

64%

Full breach record for LABORATORY CORPORATION OF AMERICA HOLDINGS →5 incidents on file

Laboratory Corporation of America Holdings (LabCorp) notified South Carolina residents that its third-party vendor, American Medical Collection Agency (AMCA), experienced unauthorized access to its web payment system between August 1, 2018, and March 30, 2019. LabCorp's own systems were not affected. The breach potentially exposed patient names, addresses, balances, dates of birth, referring physicians, dates of service, health insurance information, and Social Security Numbers. LabCorp stopped using AMCA immediately upon notification and offered two years of Experian IdentityWorks to affected individuals.

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South Carolina clock✓ SC CRA notice due9 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 286 days

discovery → filing · 9 weeks / 62 days

Aug 1, 2018

Begins

May 14, 2019

Discovered

Jul 15, 2019

Filed

This filing is one of 8 about the same incident.View merged incident

Part of Retrieval-Masters Creditors Bureau, Inc supply-chain incident (2019) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

California State AGbd_bb71fbf6fb9ef2682019-07-15Verified
New Hampshire State AGbd_0b3589b29539db7b2019-07-16 · +1dVerified
Massachusetts State AGbd_3d616b53be77be772019-07-17 · +2dVerified by operator
Oregon State AGbd_d4aa5c9a608674422019-07-17 · +2dVerified

Show 3 more filings ↓up to 2d gap

HHS OCRbd_3372e6a02aca0a242019-07-13 · +2dVerified
Washington State AGbd_7826d26cbfc754222019-07-13 · +2dVerified
Montana State AGbd_eb0456665111f5592019-07-13 · +2dVerified by operator

Name: LABORATORY CORPORATION OF AMERICA HOLDINGS
norm: laboratory corporation of america
Domain: labcorp.com

Name: LABORATORY CORPORATION OF AMERICA HOLDINGS
norm: laboratory corporation of america
Domain: labcorp.com

Discovered: May 14, 2019
Breach occurred: Aug 1, 2018 – Mar 30, 2019
Undetected for: 286 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 366,110state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Third party: via American Medical Collection Agencyvendor
Initial access: valid_credentials

During the incident: Stopped sending new collection requests to AMCA
Stopped AMCA from continuing to work on any pending LabCorp collection requests
Offering a complimentary two-year membership of Experian’s IdentityWorks
Changes made: Work closely with our vendors and business associates to enhance the security of patient health and personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 days from discovery to filing)
Compliance flags: SC CRA notice due
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

HHS OCRJul 13 · first

Washington State AGJul 13 · first

Montana State AGJul 13 · first

California State AG+2d

South Carolina State AG+2d · this page

New Hampshire State AG+3d

Massachusetts State AG+4d

Oregon State AG+4d

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://consumer.sc.gov/sites/consumer/files/Documents/Business%20Resources%20Laws/Related%20Laws/Breaches/2019/LabCorp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2019
Raw hash: 1bb32c190d9ec2bdcc8ea45879c138e8cd77cf4f5791e212458b41e3de45ccc8

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityLABORATORY CORPORATION OF AMERICA HOLDINGS

Victim entityLABORATORY CORPORATION OF AMERICA HOLDINGS

Incidentdiscovered May 14, 2019

Stated responseStopped sending new collection requests to AMCA

ComplianceSC CRA notice due

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov