MalwareHealthcareHealthcareRansomwareData ExfiltratedRansom DemandedTargetedIdentity (basic)Government IDHealth (basic)PHIHighContained

Kootenai Health

bd_9a0d2aaa103665ed · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 2, 2024

Filed

Aug 13, 2024

To disclose

23 weeks

Affected

94,530state residents only

Linked

11 filings

Confidence

69%

Full breach record for Kootenai Health →

Kootenai Health notified the Washington AG of a ransomware incident affecting 94,530 residents. Unauthorized access occurred on or about Feb 22, 2024; discovered March 2, 2024. Data potentially included names, SSNs, DOBs, driver's licenses, and PHI. Kootenai engaged forensic experts, notified the FBI, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d23 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 · 9 days

discovery → filing · 23 weeks / 164 days

Feb 22, 2024

Begins

Mar 2, 2024

Discovered

Aug 13, 2024

Filed

vs. sector median

+11 wks slower

This filing is one of 11 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitethreeambd_9bec957b67b78ee02024-03-25 · +141dVerified by operator

Regulatory filings (9) · sorted by filing gap

Oregon State AGbd_e32a5cabcecf51a32024-08-13Verified by operator
Massachusetts State AGbd_26ce553c58cb69262024-08-14 · +1dVerified by operator
New Hampshire State AGbd_196109db99161bff2024-08-12 · +1dVerified by operator
California State AGbd_7207145d3a1eee732024-08-12 · +1dVerified by operator

Show 5 more filings ↓up to 111d gap

Maine State AGbd_bbd64450e7d998702024-08-12 · +1dVerified by operator
Indiana State AGbd_c536f51a1acc533b2024-08-12 · +1dVerified by operator
Montana State AGbd_c76c2ab47183bfe82024-08-12 · +1dVerified by operator
Illinois State AGbd_d60e84d88ca3d0932024-08-01 · +12dVerified by operator
HHS OCRbd_12ca7637998f0d3a2024-04-24 · +111dVerified

Name: Constangy, Brooks, Smith and Prophete LLP
norm: constangy brooks smith and prophete
Domain: kh.org

Name: Kootenai Health
norm: kootenai health
Domain: kh.org
Industry: Healthcarellm

Discovered: Mar 2, 2024
Breach occurred: Feb 22, 2024 – Mar 2, 2024
Undetected for: 9 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 12, 2024
Affected individuals: 94,530state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Notified Washington Attorney GeneralNotified Federal Bureau of Investigation
Initial access: exploit_public_facing

During the incident: Engaged leading cybersecurity experts to assist with an investigation
Took steps to secure its digital environment
Launched a forensics investigation to determine the source and scope of the compromise
Reported this incident to federal law enforcement and is cooperating with the investigation
Notified affected individuals via first class U.S. mail
Offered affected individuals complimentary credit monitoring and identity protection services through IDX
Changes made: Implemented additional security measures to further harden its environment
Implemented additional security features to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(164 days from discovery to filing)
Compliance flags: WA AG >90dLeak >90d
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 · 10 filings · 10 states

View merged incident ↗

HHS OCRApr 24 · first

Illinois State AG+99d

New Hampshire State AG+110d

California State AG+110d

Maine State AG+110d

Indiana State AG+110d

Montana State AG+110d

Oregon State AG+111d

Washington State AG+111d · this page

Massachusetts State AG+112d

Pattern: first filing Apr 24 (ID), last Aug 14 (MA) — a 112-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA30202.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 13, 2024
Raw hash: 0efb182d196d954608d14a6dd01218586f6599af2737e17766e897a75ebfcb6d

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityConstangy, Brooks, Smith and Prophete LLP

Victim entityKootenai Health

Incidentdiscovered Mar 2, 2024

Stated responseEngaged leading cybersecurity experts to assist with an investigation

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com