HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

Whitman County Public Hospital District No. 3

bd_64daf19b135a219f · schema v1 · pii pii-v1

Severity

High

Discovered

Feb 28, 2025

Filed

Apr 11, 2025

To disclose

6 weeks

Affected

48,174state residents only

Linked

2 filings

Confidence

71%

Full breach record for Whitman County Public Hospital District No. 3 →

Whitman County Public Hospital District No. 3 d/b/a Whitman Hospital & Medical Clinics reported unauthorized access to its IT environment between Dec 26, 2024 and Feb 28, 2025. The incident exposed patient PHI (diagnoses, lab results, SSNs, financial info) and employee PII (SSNs, bank details) for 48,174 Washington residents. Notices were mailed April 11, 2025, offering one year of credit monitoring.

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Washington clock⏱ WA AG >30d6 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 · 64 days

discovery → filing · 6 weeks / 42 days

Dec 26, 2024

Begins

Feb 28, 2025

Discovered

Apr 11, 2025

Filed

vs. sector median

3 wks faster

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_174f18a90329dc312025-04-11Verified

Name: Whitman County Public Hospital District No. 3
norm: whitman county public hospital district no 3

Name: Whitman County Public Hospital District No. 3
norm: whitman county public hospital district no 3
Also named: Whitman County Public Hospital District No. 3dba oflegal entity
Whitman Hospital & Medical Clinicsdba oftrade name
Industry: Healthcarellm

Discovered: Feb 28, 2025
Breach occurred: Dec 26, 2024 – Feb 28, 2025
Undetected for: 64 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 11, 2025
Affected individuals: 48,174state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: NameSocial Security numberFinancial account numberDate of birthHealth insurance IDMedical information
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified Washington Attorney General

During the incident: Initiated an investigation
Took steps to secure its systems
Notified law enforcement
Engaged a third-party forensic firm to assist in the investigation
Changes made: Implemented additional safeguards and technical security measures to further protect and monitor its systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(42 days from discovery to filing)
Compliance flags: WA AG >30d
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRApr 11 · first

Washington State AGApr 11 · first · this page

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA32999.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 11, 2025
Raw hash: e4c6cbc5ebc7134bb4832657df0f3cd3a6ab7ebcfe7d0b5f5361a9ccfc59cc16

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityWhitman County Public Hospital District No. 3

Victim entityWhitman County Public Hospital District No. 3

Incidentdiscovered Feb 28, 2025

Stated responseInitiated an investigation

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com