UnknownGovernmentGovernmentGovernment IDHealth (basic)Medium

Appalachian Regional Commission

bd_e3bc9e8c6362efb8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jul 15, 2025

To disclose

—

Affected

3state residents only

Linked

8 filings

Confidence

95%

Full breach record for Appalachian Regional Commission →

Appalachian Regional Commission reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-07-15. 3 Massachusetts residents were affected.

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Leak gap clock⏱ Leak >90d

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

Incident timeline — partial

? — ?

Breach window unknown

Jul 15, 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 8 about the same incident.View merged incident

A leak claim by medusa about this victim predates this filing by 96 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitemedusabd_3b6377441539e4122025-04-24 · +82dVerified by operator
Leak Sitemedusabd_fd86c5fa76b5eb3e2025-04-10 · +96dVerified by operator

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_07c7c538d3cc209a2025-07-15Candidate
Nebraska State AGbd_0c6bfea17a31825a2025-07-15Verified
Vermont State AGbd_1a0a528fe9e9caed2025-07-15Verified by operator
Indiana State AGbd_c52276d3217148ad2025-07-15Verified by operator

Show 1 more filing ↓up to 1d gap

New Hampshire State AGbd_465cb0871721c5572025-07-16 · +1dVerified

Name: Appalachian Regional Commission
norm: appalachian regional commission
Domain: arc.gov

Name: Appalachian Regional Commission
norm: appalachian regional commission
Domain: arc.gov
Industry: Governmentregulator portal

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Government IDHealth (basic)
Data elements: Social Security numberMedical information
Stated not affected: Financial 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: Leak >90dMA 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 · 6 filings · 6 states

View merged incident ↗

Maine State AGJul 15 · first

Nebraska State AGJul 15 · first

Vermont State AGJul 15 · first

Indiana State AGJul 15 · first

Massachusetts State AGJul 15 · first · this page

New Hampshire State AG+1d

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: Jul 15, 2025
Raw hash: 6f08ea365cb35f3ae508560c190b188d979039aeb578f90a963f848b897ee9f0

Linked disclosures

Ransomware claims (2)

Regulatory filings (5) · sorted by filing gap

Reporting entityAppalachian Regional Commission

Victim entityAppalachian Regional Commission

IncidentUnknown

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov