GLOBALClaimed by Hunters InternationalFirst sightinglinked via shared-victim match · 100%
Posted to leak site Nov 24, 2023bd_e126d2b06d0b3171
Country : United States of America - Exfiltraded data : yes - Encrypted data : no
Clustered 6 filings across 4 jurisdictions · filing window Nov 24, 2023 → Feb 29, 2024. View entity profile → Other incidents for this victim →
incident inc_9789705e3fa14c2c · merge_method human · confidence 100%
Discovered → first regulatory filing
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Materiality delta · SEC filing delay — no SEC 8-K in this cluster; needs two dated filings.
MT OR WA
Leak Site · HHS OCR · State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Nov 19, 2023 → Nov 25, 2023
When the intrusion reportedly occurred, per the linked filings
Nov 19, 2023
Reported by OREGON AG filing
Country : United States of America - Exfiltraded data : yes - Encrypted data : no
Country : United States of America - Exfiltraded data : yes - Encrypted data : no
Fred Hutchinson Cancer Center reported a data breach to the Oregon Attorney General. The breach was reported on 2023-12-22. The breach occurred during 11/19/2023 - 11/25/2023. The breach was discovered on 11/19/2023. 339,469 individuals were affected. Notice was sent on 12/20/2023.
Affected (this filing): 339,469
Fred Hutchinson Cancer Center reported a data breach to the Montana Attorney General. The breach was reported on 2023-12-22. The breach occurred from 11/19/2023 to 11/25/2023. 15,253 Montana residents were affected.
Affected (this filing): 15,253
Fred Hutchinson Cancer Center (WA) reported to HHS on 2023-12-26 a Loss affecting 20,192 individuals. A laptop containing PHI was lost or stolen from an employee during travel. PHI exposed included names, addresses, dates of birth, Social Security numbers, diagnoses, medications, and lab results. The CE notified HHS, affected individuals, and media; provided substitute notice and complimentary credit monitoring; and implemented additional safeguards with staff retraining.
Affected (this filing): 20,192
Fred Hutchinson Cancer Center reported a data breach to the Montana Attorney General. The breach was reported on 2024-02-29. The breach occurred on 10/27/2023. 211 Montana residents were affected.
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.
Affected (this filing): 211