Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedData ExfiltratedPHIPIIIdentity (basic)LowContained

Central Ozarks Medical Center

bd_8f4c56dc0e884c92 · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 10, 2025

Filed

Jan 9, 2026

To disclose

9 weeks

Affected

1state residents only

Linked

4 filings

Confidence

65%

Full breach record for Central Ozarks Medical Center →

Central Ozarks Medical Center notified individuals of a criminal cyberattack impacting an employee email account on or about November 10, 2025. The incident involved unauthorized access to PHI and PII (names). The organization engaged third-party experts, secured systems, and provided 12-24 months of credit monitoring via IDX to affected individuals.

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Incident timeline

discovery → filing · 9 weeks / 60 days

Nov 10, 2025

Discovered

Jan 9, 2026

Filed

vs. sector median

3 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

HHS OCRbd_e8366f2f443ebcd62026-01-09Verified
Indiana State AGbd_ff6ee2e3fab37c7f2026-01-09Verified by operator
Massachusetts State AGbd_dd486ef81fa7ac2f2026-01-27 · +18dVerified

Name: Central Ozarks Medical Center
norm: central ozarks medical center

Name: Central Ozarks Medical Center
norm: central ozarks medical center
Industry: Healthcarellm

Discovered: Nov 10, 2025
Materiality determined: —
Notification sent: Jan 9, 2026
Affected individuals: 1state-resident count only
Data types: PHIPIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Took immediate steps to secure our systems and investigate the nature and scope of the Incident
Arranged for IDX to provide free credit monitoring and related services
Implemented additional security enhancements
Changes made: Continue to regularly assess and strengthen our security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(60 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRJan 9 · first

Indiana State AGJan 9 · first

Montana State AGJan 9 · first · this page

Massachusetts State AG+18d

Pattern: first filing Jan 9 (MO), last Jan 27 (MA) — a 18-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/2026/05/Consumer-notification-letter-7.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 9, 2026
Raw hash: f028e002e9eb9faf5914c07d9db301b07c27e8cf7841fee18eccc220565908bf

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCentral Ozarks Medical Center

Victim entityCentral Ozarks Medical Center

Incidentdiscovered Nov 10, 2025

Stated responseTook immediate steps to secure our systems and investigate the nature and scope of the Incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov