Clustered 6 filings across 5 jurisdictions · filing window Oct 22, 2022 → Apr 1, 2023. View entity profile → Other incidents for this victim →
incident inc_ed5fd32d864141ed · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
MT ND VT WA
Leak Site · HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Southwest Healthcare Services is a non-profit organization dedicated to providing quality healthcare in southwest North Dakota and northwest South Dakota. https://swhealthcare.net/ Full Data Download...
Oct 28, 2022
When the intrusion reportedly occurred, per the linked filings
Oct 30, 2022
Reported by WASHINGTON AG filing
Jan 31, 2023
Reported by VERMONT AG filings
Southwest Healthcare Services (ND) reported to HHS OCR on 2023-04-01 a ransomware attack affecting the PHI of 15,996 individuals. Breached information was located on a Network Server and included clinical, financial, and demographic information. The CE notified HHS, affected individuals, and the media, provided substitute notice, offered complimentary credit monitoring, and implemented additional administrative, technical, and security safeguards.
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Southwest Healthcare Services, a health sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2022-10-30 and filed notice on 2023-03-31. 1,225 Washington residents were affected. 152 days elapsed between awareness and notification. 2 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 1,225
Southwest Healthcare Services reported a data breach to the Montana Attorney General. The breach was reported on 2023-03-31. The breach occurred from 10/28/2022 to 10/29/2022. 547 Montana residents were affected.
Affected (this filing): 547
Southwest Healthcare Services notified Vermont AG that an unauthorized actor accessed its network between Oct 28-29, 2022. Discovered Jan 31, 2023, the incident involved access to files containing names and medical information. The company secured the network and engaged outside cybersecurity professionals. No evidence of identity theft was found.
Southwest Healthcare Services notified Vermont AG that an unauthorized actor accessed its network between Oct 28-29, 2022. The breach, discovered Jan 31, 2023, exposed names. The company secured the network and engaged outside cybersecurity professionals for investigation. No evidence of identity theft was found. Consumers were advised to place fraud alerts or security freezes on credit files.
Affected (this filing): 15,996