MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedFinancial accountHealth (basic)Identity (basic)Government IDPHICriticalContained

Northwest Radiologists, Inc./Mount Baker Imaging

bd_0015ee9f373b4776 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jan 25, 2025

Filed

Jul 10, 2025

To disclose

24 weeks

Affected

348,118state residents only

Linked

6 filings

Confidence

68%

Full breach record for Northwest Radiologists, Inc./Mount Baker Imaging →

Northwest Radiologists, Inc. and Mount Baker Imaging experienced a ransomware attack between Jan 20-25, 2025. Unauthorized access affected PHI, SSNs, and PII of ~348,118 individuals. The company engaged law enforcement and forensic specialists, implemented technical safeguards, and offered credit monitoring.

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Washington clock✗ WA AG >90d24 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 · 5 days

discovery → filing · 24 weeks / 166 days

Jan 20, 2025

Begins

Jan 25, 2025

Discovered

Jul 10, 2025

Filed

vs. sector median

+11 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

HHS OCRbd_3852def57b155f672025-10-28 · +110dVerified by operator
California State AGbd_16235da02de878672025-10-29 · +111dVerified by operator
Oregon State AGbd_3e0fca4b5b9d294f2025-10-29 · +111dVerified by operator
New Hampshire State AGbd_9173669cd15d26c52025-10-29 · +111dVerified

Show 1 more filing ↓up to 111d gap

Nebraska State AGbd_e7a3610e1fcf4ed82025-10-29 · +111dVerified

Name: Northwest Radiologists, Inc./Mount Baker Imaging
norm: northwest radiologists inc mount baker imaging
Industry: Health

Name: Northwest Radiologists, Inc./Mount Baker Imaging
norm: northwest radiologists inc mount baker imaging
Industry: Health
Industry: Healthcarellm

Discovered: Jan 25, 2025
Breach occurred: Jan 20, 2025 – Jan 25, 2025
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 348,118state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthMilitary ID numberHealth 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 ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: contacted law enforcement

During the incident: Contacted law enforcement
Engaging third- party specialists to assist with determining the nature and scope of the event
Took steps to secure the environment
Undertook a thorough investigation
Implemented additional technical safeguards
Changes made: Implemented additional technical safeguards to further enhance the security of information in our possession and to prevent similar incidents from happening in the future
Offering you complimentary credit monitoring and identity protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(166 days from discovery to filing)
Compliance flags: WA AG >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 · 6 filings · 5 states

View merged incident ↗

Washington State AGJul 10 · first · this page

HHS OCR+110d

California State AG+111d

Oregon State AG+111d

New Hampshire State AG+111d

Nebraska State AG+111d

Pattern: first filing Jul 10 (WA), last Oct 29 (NE) — a 111-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/BreachA33959.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 10, 2025
Raw hash: e1a44507f8720ce5bfee5ec2ea4cf516005de95f5a38f3b10283f36d052bf812

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityNorthwest Radiologists, Inc./Mount Baker Imaging

Victim entityNorthwest Radiologists, Inc./Mount Baker Imaging

Incidentdiscovered Jan 25, 2025

Stated responseContacted law enforcement

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com