MalwareHealthcareHealthcareRansomwareData ExfiltratedRansom DemandedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Rehabilitation Hospital of the Northwest

bd_55ca96a0b7c85368 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 1, 2024

Filed

Apr 1, 2024

To disclose

9 weeks

Affected

728state residents only

Linked

3 filings

Confidence

69%

Full breach record for Rehabilitation Hospital of the Northwest →

Rehabilitation Hospital of the Northwest reported a ransomware cyberattack occurring between Jan 16 and Feb 4, 2024. The unauthorized party accessed patient and employee data including names, SSNs, driver's license numbers, and medical info. The facility was alerted on Feb 1, 2024. Notifications were mailed to 728 Washington residents on March 29, 2024, offering credit monitoring.

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Washington clock⏱ WA AG >30d9 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 · 16 days

discovery → filing · 9 weeks / 60 days

Jan 16, 2024

Begins

Feb 1, 2024

Discovered

Apr 1, 2024

Filed

vs. sector median

2 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

HHS OCRbd_1723634b5d98c24c2024-03-29 · +3dVerified
Montana State AGbd_2a7d5bacd7e794ec2024-03-29 · +3dVerified

Name: Rehabilitation Hospital of the Northwest
norm: rehabilitation hospital of the northwest

Name: Rehabilitation Hospital of the Northwest
norm: rehabilitation hospital of the northwest
Industry: Healthcarellm

Discovered: Feb 1, 2024
Breach occurred: Jan 16, 2024 – Feb 4, 2024
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 29, 2024
Affected individuals: 728state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoing
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: in communication with law enforcement
Initial access: valid_credentials

During the incident: Promptly secured and isolated its IT systems
Commenced an investigation with assistance from a third-party cybersecurity firm
In communication with law enforcement
Began mailing notification letters to 728 Washington residents
Providing individuals whose Social Security and/or driver’s license numbers may have been involved complimentary memberships to credit monitoring and identity theft protection services
Established a dedicated, toll-free incident response line
Changes made: Implemented, and will continue to adopt, 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: 9 weeks(60 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 · 3 filings · 3 states

View merged incident ↗

HHS OCRMar 29 · first

Montana State AGMar 29 · first

Washington State AG+3d · 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/BreachA28469.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 1, 2024
Raw hash: aef2ded59fdf27eaedbc03b49c38805befa8312e734dd2fd69a9e122152fdec6

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityRehabilitation Hospital of the Northwest

Victim entityRehabilitation Hospital of the Northwest

Incidentdiscovered Feb 1, 2024

Stated responsePromptly secured and isolated its IT systems

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com