HackingHealthcareHealthcareStolen CredentialsDelayed DiscoveryIdentity (basic)Government IDHealth (basic)MediumActive

Washington Gastroenterology (DHSWA.NET)

bd_0a70c1602ac9e3e1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 10, 2025

Filed

May 23, 2025

To disclose

11 weeks

Affected

394state residents only

Linked

10 records

Confidence

65%

Full breach record for Washington Gastroenterology (DHSWA.NET) →

Washington Gastroenterology issued a supplemental notice to Montana residents regarding unauthorized access to a legacy system discovered on March 10, 2025. The incident exposed names, SSNs, and medical information. Notices began on May 23, 2025. The investigation was ongoing at the time of the initial notice and remains active.

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Leak gap clock⏱ Leak >90d11 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 11 weeks / 74 days

Mar 10, 2025

Discovered

May 23, 2025

Filed

vs. sector median

+2 wks slower

This filing is one of 10 records about the same incident.View merged incident

A leak claim by inc_ransom about this victim was first seen 126 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinc_ransombd_4436a8fdef7f5ef42025-01-17 · +126dVerified

Regulatory filings (8) · sorted by filing gap

Nebraska State AGbd_4a6775f40250687e2025-05-23Candidate
Washington State AGbd_a0f3e46923292d092025-05-23Verified by operator
HHS OCRbd_20053881fa1fad8d2025-05-09 · +14dVerified
Massachusetts State AGbd_038e9e7d9d536dc42025-08-22 · +91dVerified

Show 4 more filings ↓up to 101d gap

New Hampshire State AGbd_44f4768b3a04a1ed2025-08-22 · +91dVerified
California State AGbd_a7c6808bffa98bd62025-08-22 · +91dVerified by operator
Texas State AGbd_3be4517fb0653ab02025-08-26 · +95dVerified
Illinois State AGbd_786f230c29b384102025-09-01 · +101dVerified by operator

Name: Washington Gastroenterology (DHSWA.NET)
norm: washington gastroenterology dhswanet
Domain: washgi.com

Name: Washington Gastroenterology (DHSWA.NET)
norm: washington gastroenterology dhswanet
Domain: washgi.com
Industry: Healthcarellm

Discovered: Mar 10, 2025
Materiality determined: —
Notification sent: May 23, 2025
Affected individuals: 394state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Medical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Engaged a third-party forensic firm to assist in conducting a comprehensive investigation
Offering credit monitoring and identity restoration services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(74 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

HHS OCRMay 9 · first

Nebraska State AG+14d

Washington State AG+14d

Montana State AG+14d · this page

Massachusetts State AG+105d

New Hampshire State AG+105d

California State AG+105d

Texas State AG+109d

Illinois State AG+115d

Pattern: first filing May 9 (WA), last Sep 1 (IL) — a 115-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://dojmt.gov/wp-content/uploads/2025/09/Consumer-notification-letter-2.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 23, 2025
Raw hash: 1644215636a1b19a4729f262f7f2cf23bf5c83e97f45b97b3a56eb5bab5ff2f1

Linked disclosures

Ransomware claims (1)

Regulatory filings (8) · sorted by filing gap

Reporting entityWashington Gastroenterology (DHSWA.NET)

Victim entityWashington Gastroenterology (DHSWA.NET)

Incidentdiscovered Mar 10, 2025

Stated responseEngaged a third-party forensic firm to assist in conducting a comprehensive investigation

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov