MalwareHealthcareHealthcareRansomwareData EncryptedCustomer Data InvolvedPHIIdentity (basic)Government IDHealth (basic)MediumActive

Minidoka Memorial Hospital

bd_94e26b58eee9cff4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 7, 2026

Filed

Aug 6, 2026

To disclose

17 weeks

Affected

Not disclosed

Linked

4 filings

Confidence

68%

Full breach record for Minidoka Memorial Hospital →

Minidoka Memorial Hospital experienced a ransomware incident detected on April 7, 2026. The hospital took systems offline and engaged cybersecurity experts. Potential compromise includes names, addresses, SSNs, and medical information. The number of affected Idaho residents is currently unknown, and a supplemental notification is planned. The hospital is offering credit monitoring and has implemented stricter MFA and password requirements.

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Leak gap clock⏱ Leak >90d17 weeks discovery → filing

Incident timeline

discovery → filing · 17 weeks / 121 days

Apr 7, 2026

Discovered

Aug 6, 2026

Filed

vs. sector median

+5 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteblackwaterbd_7914236fd4e929012026-04-17 · +110dCandidate

Regulatory filings (2) · sorted by filing gap

HHS OCRbd_7052fc83528b1ee52026-06-04 · +63dCandidate
Pressblackwaterbd_8a05174cddeb6c682026-04-05 · +123dCandidate

Name: Minidoka Memorial Hospital
norm: minidoka memorial hospital
Domain: minidokamemorial.org

Name: Minidoka Memorial Hospital
norm: minidoka memorial hospital
Domain: minidokamemorial.org
Industry: Healthcarellm

Discovered: Apr 7, 2026
Materiality determined: —
Notification sent: Aug 6, 2026
Affected individuals: Not disclosed
Data types: PHIIdentity (basic)Government IDHealth (basic)
Data elements: Social Security numberMedical information
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified Idaho Attorney General’s Office

During the incident: Proactively taking systems offline to contain the issue
Engaged industry leading outside cybersecurity experts to assist with securing the network environment and investigating the extent of unauthorized activity
Undertook a comprehensive review of the data potentially impacted
Engaged a data mining vendor to determine the specific impacted population
Offering free credit monitoring and identity theft protection through CyberScout
Changed passwords
Strengthened password requirements
Implemented stricter multi-factor authentication requirements
Changes made: Changed passwords
Strengthened password requirements
Implemented stricter multi-factor authentication requirements
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(121 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings

View merged incident ↗

PressApr 5 · first

HHS OCR+60d

Idaho State AG+123d · this page

Pattern: first filing Apr 5, last Aug 6 (ID) — a 123-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.ag.idaho.gov/content/uploads/2026/08/2026-08-06-Minidoka-Memorial-Hospital.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 6, 2026
Raw hash: 416c0aeef6818251f4ba1100e96ef94e821e6e8786d6132b65cb2e065bf378ff

Linked disclosures

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Reporting entityMinidoka Memorial Hospital

Victim entityMinidoka Memorial Hospital

Incidentdiscovered Apr 7, 2026

Stated responseProactively taking systems offline to contain the issue

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov