HackingHealthcareHealthcareStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Delta County Memorial Hospital District (Delta Health)

bd_34943d644a6adedd · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 30, 2024

Filed

Jan 31, 2025

To disclose

35 weeks

Affected

189state residents only

Linked

8 filings

Confidence

66%

Full breach record for Delta County Memorial Hospital District (Delta Health) →2 incidents on file

Delta County Memorial Hospital District notified individuals of unauthorized network access between May 27-30, 2024. Suspicious activity detected May 30, 2024. Files accessed may contain PII, SSN, financial, and medical data. Law enforcement and cybersecurity experts engaged. Experian credit monitoring offered.

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Incident timeline

undetected · 3 days

discovery → filing · 35 weeks / 246 days

May 27, 2024

Begins

May 30, 2024

Discovered

Jan 31, 2025

Filed

vs. sector median

+23 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

California State AGbd_1b8929159a2c6c152025-01-31Verified
New Hampshire State AGbd_21469493f21bc2af2025-01-31Verified
Oregon State AGbd_92d6656257b5349b2025-01-31Verified
Vermont State AGbd_bad5789d01d1b2922025-01-31Verified

Show 3 more filings ↓up to 30d gap

Nebraska State AGbd_c7c2c066c39bb2d62025-01-31Verified
Maine State AGbd_e7b66af0bbdf264e2025-01-31Verified
Illinois State AGbd_c07b0945183ddca52025-01-01 · +30dVerified

Name: Delta County Memorial Hospital District (Delta Health)
norm: delta county memorial hospital district delta health

Name: Delta County Memorial Hospital District (Delta Health)
norm: delta county memorial hospital district delta health
Industry: Healthcarellm

Discovered: May 30, 2024
Breach occurred: May 27, 2024 – May 30, 2024
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 189state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Notified law enforcement
Began an investigation with the help of leading cybersecurity experts
Offering a complimentary one-year membership of Experian IdentityWorks SM Credit 3B
Changes made: Further enhancing our security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 35 weeks(246 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

Illinois State AGJan 1 · first

California State AG+30d

New Hampshire State AG+30d

Oregon State AG+30d

Vermont State AG+30d

Nebraska State AG+30d

Maine State AG+30d

Montana State AG+30d · this page

Pattern: first filing Jan 1 (IL), last Jan 31 (MT) — a 30-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://dojmt.gov/wp-content/uploads/2025/02/Consumer-notification-letter-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 31, 2025
Raw hash: dee2b7f7573312a16947ae1f20e309aedf2a5dc28004648f08460b8618dd2011

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityDelta County Memorial Hospital District (Delta Health)

Victim entityDelta County Memorial Hospital District (Delta Health)

Incidentdiscovered May 30, 2024

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov