UnknownGovernment IDFinancial accountMedium

MCLAREN HEALTH CARE CORPORATION

bd_ddb258a8d643b795 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Nov 9, 2023

To disclose

—

Affected

352state residents only

Linked

10 filings

Confidence

95%

Full breach record for MCLAREN HEALTH CARE CORPORATION →4 incidents on file

McLaren Health Care reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2023-11-09. 352 Massachusetts residents were affected. The report records the breach type as electronic.

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Leak gap clock⏱ Leak >30d

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Nov 9, 2023

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 10 about the same incident.View merged incident

A leak claim by alphv about this victim predates this filing by 40 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitealphvbd_6326acdfc9de458a2023-10-04 · +35dVerified by operator
Leak Sitealphvbd_c4b2c0198b70501e2023-09-29 · +40dVerified

Regulatory filings (7) · sorted by filing gap

California State AGbd_8d2f2b3098afeb792023-11-09Verified by operator
Montana State AGbd_bd9b0633195a292f2023-11-09Verified by operator
Maine State AGbd_c24689bd6cff46e02023-11-09Verified
New Hampshire State AGbd_e2978f252f8567182023-11-09Verified by operator

Show 3 more filings ↓up to 20d gap

Idaho State AGbd_e37f582cfe47b0242023-11-09Verified by operator
Vermont State AGbd_ed0fb31e367c93232023-11-09Verified by operator
HHS OCRbd_18c5455f0815045b2023-10-20 · +20dVerified

Name: MCLAREN HEALTH CARE CORPORATION
norm: mclaren health care
Domain: mclaren.org

Name: MCLAREN HEALTH CARE CORPORATION
norm: mclaren health care
Domain: mclaren.org

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 352state-resident count only
Data types: Government IDFinancial account
Data elements: Social Security numberFinancial account number
Stated not affected: Driver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

Compliance flags: Leak >30dMA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

HHS OCROct 20 · first

California State AG+20d

Montana State AG+20d

Maine State AG+20d

New Hampshire State AG+20d

Idaho State AG+20d

Vermont State AG+20d

Massachusetts State AG+20d · this page

Pattern: first filing Oct 20 (MI), last Nov 9 (MA) — a 20-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://www.mass.gov/doc/data-breach-report-2023/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 9, 2023
Raw hash: 6b3de1c47ffa7f03dd1608375ca7cc97ad1fda5494550a02093e267cd61faf51

Linked disclosures

Ransomware claims (2)

Regulatory filings (7) · sorted by filing gap

Reporting entityMCLAREN HEALTH CARE CORPORATION

Victim entityMCLAREN HEALTH CARE CORPORATION

IncidentUnknown

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov