MISSISSIPPIMalwareHealthcareHealthcareRansomwareData EncryptedCustomer Data InvolvedPHIHealth (basic)Identity (basic)Government IDCriticalContained

Western Washington Medical Group

bd_ff8ede5de29714b0 · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Oct 26, 2023

To disclose

—

Affected

350,863

Linked

5 filings

Confidence

68%

Full breach record for Western Washington Medical Group →2 incidents on file

Western Washington Medical Group reported to HHS on 2023-10-26 a Hacking/IT Incident affecting 350,863 individuals. Breached information located on Network Server. The incident involved a ransomware attack exposing PHI including names, addresses, SSNs, DOBs, claims, and diagnoses.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Oct 26, 2023

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Montana State AGbd_3194136d48dfc6e62023-11-08 · +13dVerified
Massachusetts State AGbd_7f62435f119dd5842023-11-08 · +13dVerified
Washington State AGbd_b8a7159ff331f4e52023-11-08 · +13dVerified
California State AGbd_c7f523f67fade61f2023-11-08 · +13dVerified

Name: Western Washington Medical Group
norm: western washington medical
Industry: Health Care Services

Name: Western Washington Medical Group
norm: western washington medical
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 350,863nationwide
Data types: PHIHealth (basic)Identity (basic)Government ID
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified HHS

During the incident: Provided complimentary credit monitoring services
Implemented additional administrative, technical, and security safeguards
Staff were retrained on the requirement to protect and secure PHI
Notified HHS
Notified the affected individuals
Notified the media
Changes made: Implemented additional administrative, technical, and security safeguards
Staff were retrained on the requirement to protect and secure PHI
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

HHS OCROct 26 · first · this page

Montana State AG+13d

Massachusetts State AG+13d

Washington State AG+13d

California State AG+13d

Pattern: first filing Oct 26 (MS), last Nov 8 (CA) — a 13-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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Oct 26, 2023
Raw hash: 66b177ff528e64fd2d40663d658d8c7e0a9b41ced8c8cb13eca8f1382899dce3

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityWestern Washington Medical Group

Victim entityWestern Washington Medical Group

IncidentUnauthorized Access

Stated responseProvided complimentary credit monitoring services

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing