🦬Montana State AG
Clustered 3 filings across 3 jurisdictions · filed Nov 8, 2023. View entity profile → Other incidents for this victim →
incident inc_00749af67a2f4bde · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA MT WA
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Aug 26, 2023
When the intrusion reportedly occurred, per the linked filings
Aug 26, 2023
Reported by CALIFORNIA AG filing
Sep 25, 2023
Reported by WASHINGTON AG filing
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.
Western Washington Medical Group reported a data breach to the Montana Attorney General. The breach was reported on 2023-11-08. The breach occurred on 8/26/2023. 677 Montana residents were affected.
Affected (this filing): 677
Western Washington Medical Group, a health sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2023-09-25 and filed notice on 2023-11-08. 334,360 Washington residents were affected. 44 days elapsed between awareness and notification. 80 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 334,360
Western Washington Medical Group experienced a network security incident on August 26, 2023, involving unauthorized access to its network environment. The breach window is identified as July 7, 2023, to August 26, 2023. Affected data may include names, addresses, Social Security numbers, dates of birth, medical record numbers, health insurance policy numbers, and medical history. The organization contained the incident by shutting off network access and engaged third-party forensic investigators. Complimentary identity monitoring services were offered to affected individuals.