HackingHealthcareHealthcareStolen CredentialsData ExfiltratedPIIPHIIdentity (basic)Health (basic)LowContained

Chelan Douglas Health District

bd_4a8ef51c11d49b28 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 12, 2022

Filed

Mar 15, 2022

To disclose

4 weeks

Affected

44state residents only

Linked

3 filings

Confidence

66%

Full breach record for Chelan Douglas Health District →

Chelan Douglas Health District notified individuals of unauthorized network access occurring July 2-4, 2021. The district discovered the incident on February 12, 2022, when identifiable personal and protected health information (names, PHI) was found removed from the network. The organization engaged outside cybersecurity professionals for investigation.

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Incident timeline

undetected · 225 days

discovery → filing · 4 weeks / 31 days

Jul 2, 2021

Begins

Feb 12, 2022

Discovered

Mar 15, 2022

Filed

vs. sector median

8 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Washington State AGbd_431f93634426062b2022-03-15Verified
HHS OCRbd_84e1de47990cfeef2022-03-15Verified

Name: Chelan Douglas Health District
norm: chelan douglas health district

Name: Chelan Douglas Health District
norm: chelan douglas health district
Industry: Healthcarellm

Discovered: Feb 12, 2022
Breach occurred: Jul 2, 2021 – Jul 4, 2021
Undetected for: 225 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 44state-resident count only
Data types: PIIPHIIdentity (basic)Health (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Initial access: valid_credentials

During the incident: Launched an investigation in consultation with outside cybersecurity professionals
Changes made: Continually evaluate and modify our practices and internal controls to enhance the security and privacy of your personal and protected health information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 2 states

View merged incident ↗

Washington State AGMar 15 · first

HHS OCRMar 15 · first

Montana State AGMar 15 · 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://dojmt.gov/wp-content/uploads/Chelan-Douglas-Health-District-Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 15, 2022
Raw hash: ff103497bdae831e038580613092420afd9c8f2e6452b87d1c932fb3b7e5668a

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityChelan Douglas Health District

Victim entityChelan Douglas Health District

Incidentdiscovered Feb 12, 2022

Stated responseLaunched an investigation in consultation with outside cybersecurity professionals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov