HackingHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)MediumContained

Clarinda Regional Health Center

bd_8c15e8d2a940b204 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 15, 2025

Filed

Jun 3, 2026

To disclose

24 weeks

Affected · nationwide

24,3411 in this filing

Linked

8 filings

Confidence

65%

Full breach record for Clarinda Regional Health Center →

Clarinda Regional Health Center, a healthcare provider located in Clarinda, Iowa, reported an external system breach (hacking) occurring on October 6, 2025, discovered on December 15, 2025. The incident affected 24,341 individuals, including one Maine resident. The organization notified affected individuals in writing on June 2, 2026, and provided TransUnion credit monitoring and identity protection services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 15, 2025 → Filed with AG Jun 3, 2026170d ✗ ME AG >90d24 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 · 70 days

discovery → filing · 24 weeks / 170 days

Oct 6, 2025

Begins

Dec 15, 2025

Discovered

Jun 3, 2026

Filed

vs. sector median

+12 wks slower

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

A leak claim by lockbit5 about this victim predates this filing by 238 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitelockbit5bd_f146826d713c3bc02025-10-08 · +238dVerified by operator

Regulatory filings (6) · sorted by filing gap

Massachusetts State AGbd_5ab406081578f5a72026-06-03Candidate
Vermont State AGbd_9f404185e4333ea32026-06-03Verified by operator
Nebraska State AGbd_1e4563862efc63372026-06-01 · +2dVerified by operator
New Hampshire State AGbd_37dfc805ee34f57c2026-06-01 · +2dVerified

Show 2 more filings ↓up to 70d gap

Iowa State AGbd_c83dd89c82f2e71d2026-06-01 · +2dVerified
HHS OCRbd_563f62e663ef1c802026-03-25 · +70dVerified

Name: Clarinda Regional Health Center
norm: clarinda regional health center
Domain: clarindahealth.com

Name: Clarinda Regional Health Center
norm: clarinda regional health center
Domain: clarindahealth.com
Industry: Healthcarellm

Discovered: Dec 15, 2025
Breach occurred: Oct 6, 2025
Undetected for: 70 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 2, 2026
Affected individuals: 24,341state + nationwide
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered TransUnion credit monitoring and identity protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(170 days from discovery to filing)
Compliance flags: ME AG >90d · 170dLeak >180dME resident >60d · 169d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 15, 2025
→ Filed with AG: Jun 3, 2026
170d 90 days ME AG >90d
Maine
Discovered: Dec 15, 2025
→ Notified: Jun 2, 2026
169d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 15, 2025 → Filed with AG: Jun 3, 2026	170d	90 days	ME AG >90d
Maine	Discovered: Dec 15, 2025 → Notified: Jun 2, 2026	169d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

HHS OCRMar 25 · first

Nebraska State AG+68d

New Hampshire State AG+68d

Iowa State AG+68d

Massachusetts State AG+70d

Vermont State AG+70d

Maine State AG+70d · this page

Pattern: first filing Mar 25 (IA), last Jun 3 (ME) — a 70-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.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/48305a42-d02d-4d6e-bfe3-4ae21ef7d206.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 3, 2026
Raw hash: 5060c18a48bf8afb6a5c6859648752644eb4746c79b4f51500f698ea3f87cc07

Linked disclosures

Ransomware claims (1)

Regulatory filings (6) · sorted by filing gap

Reporting entityClarinda Regional Health Center

Victim entityClarinda Regional Health Center

Incidentdiscovered Dec 15, 2025

Stated responseSent written notification to affected individuals

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov