MalwareGovernmentGovernmentRansomwareData ExfiltratedRansom DemandedIdentity (basic)Government IDHealth (basic)MediumContained

Appalachian Regional Commission

bd_07c7c538d3cc209a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 10, 2025

Filed

Jul 15, 2025

To disclose

14 weeks

Affected · nationwide

9371 in this filing

Linked

8 filings

Confidence

66%

Full breach record for Appalachian Regional Commission →

Appalachian Regional Commission (ARC) reported a cybersecurity incident on April 10, 2025, involving malware deployment and unauthorized data access. The breach affected 937 individuals, including 1 Maine resident. Personal information exposed included names, SSNs, driver's licenses, and medical data. ARC engaged forensic investigators, notified law enforcement, and offered 24 months of credit monitoring via IDX.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Apr 10, 2025 → Filed with AG Jul 15, 202596d ✗ ME AG >90d14 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 14 weeks / 96 days

Apr 10, 2025

Begins

Apr 10, 2025

Discovered

Jul 15, 2025

Filed

vs. sector median

+3 wks slower

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

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

Nebraska State AGbd_0c6bfea17a31825a2025-07-15Verified
Vermont State AGbd_1a0a528fe9e9caed2025-07-15Verified by operator
Indiana State AGbd_c52276d3217148ad2025-07-15Verified by operator
Massachusetts State AGbd_e3bc9e8c6362efb82025-07-15Verified 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: Governmentllm

Discovered: Apr 10, 2025
Breach occurred: Apr 10, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 15, 2025
Affected individuals: 937state + nationwide
Data types: Identity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Engaged a third-party forensic firm to investigate the incident and assist with remediation efforts
Contacted law enforcement
Enhanced security controls and monitoring practices
Changes made: Enhanced security controls and monitoring practices
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(96 days from discovery to filing)
Compliance flags: ME AG >90d · 96d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 10, 2025
→ Filed with AG: Jul 15, 2025
96d 90 days ME AG >90d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 10, 2025 → Filed with AG: Jul 15, 2025	96d	90 days	ME AG >90d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Nebraska State AGJul 15 · first

Vermont State AGJul 15 · first

Indiana State AGJul 15 · first

Massachusetts State AGJul 15 · first

Maine 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.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/92432803-595d-4344-adcb-727e9eff6573.html
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: 9994606e70abcd8a1bb060df726d0efc7bf2c54aa6cecf8a0aeb769422dc00fe

Linked disclosures

Ransomware claims (2)

Regulatory filings (5) · sorted by filing gap

Reporting entityAppalachian Regional Commission

Victim entityAppalachian Regional Commission

Incidentdiscovered Apr 10, 2025

Stated responseEngaged a third-party forensic firm to investigate the incident and assist with remediation efforts

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov