DisclosureLens
UnknownHealthcareHealthcareIdentity (basic)Government IDPHIHealth (basic)Critical

MCLAREN HEALTH CARE CORPORATION

bd_1484ed8400263435 · schema v1 · pii pii-v1

Severity

Critical

Discovered

May 5, 2025

Filed

Jun 30, 2025

To disclose

8 weeks

Affected · nationwide

743,131841 in this filing

Linked

8 filings

Confidence

95%
Full breach record for MCLAREN HEALTH CARE CORPORATION →4 incidents on file

McLaren Health Care based in Grand Blanc, Michigan, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-05-05 and reported on 2025-06-30. 841 Texas residents were affected. 743,131 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Medical Information;Health Insurance Information;Date of Birth. Consumers were notified via Posted at company website or special website;U.S. Mail;Broadcast on Texas-wide Media.

Leak gap clock✗ Leak >180d8 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 292 days
discovery → filing · ≤ 8 weeks / 56 days

Jul 17, 2024

Begins

May 5, 2025

Discovered

Jun 30, 2025

Filed

vs. sector median

5 wks faster

This filing is one of 8 about the same incident.View merged incident
A leak claim by alphv about this victim predates this filing by 639 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Show 3 more filings ↓up to 29d gap

Filing propagation · 8 filings · 8 states

View merged incident ↗
Illinois State AGJun 1 · first
Vermont State AG+19d
New Hampshire State AG+19d
Indiana State AG+19d
Massachusetts State AG+19d
Maine State AG+19d
HHS OCR+23d
Texas State AG+29d · this page

Pattern: first filing Jun 1 (IL), last Jun 30 (TX) — a 29-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.