UnknownHealthcareHealthcareGovernment IDHigh

Select Medical Holdings Corporation

bd_7d26fe9511631d00 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Jun 6, 2025

To disclose

—

Affected

1,489state residents only

Linked

5 filings

Confidence

95%

Full breach record for Select Medical Holdings Corporation →

Select Medical Holdings Corporation reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-06-06. 1,489 Massachusetts residents were affected.

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Massachusetts clock✓ MA credit monitoring due

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

Incident timeline — partial

? — ?

Breach window unknown

Jun 6, 2025

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 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

HHS OCRbd_9ce20b659c0f8e8b2025-06-06Verified
Indiana State AGbd_c5ee33b8e15d547f2025-06-06Verified
Texas State AGbd_730866763a4e7f5b2025-06-10 · +4dVerified
Illinois State AGbd_1d8bc90221186b252025-06-01 · +5dCandidate

Name: Select Medical Holdings Corporation
norm: select medical

Name: Select Medical Holdings Corporation
norm: select medical
Industry: Healthcareregulator portal

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 1,489state-resident count only
Data types: Government ID
Data elements: Social Security number
Stated not affected: Medical informationFinancial account numberDriver'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: MA 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 · 5 filings · 5 states

View merged incident ↗

Illinois State AGJun 1 · first

HHS OCR+5d

Indiana State AG+5d

Massachusetts State AG+5d · this page

Texas State AG+9d

Pattern: first filing Jun 1 (IL), last Jun 10 (TX) — a 9-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-2025/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 6, 2025
Raw hash: 11f506185441da5619914bee408a799e38eca6a191e5d62ee1b85e8dee296db5

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entitySelect Medical Holdings Corporation

Victim entitySelect Medical Holdings Corporation

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov