GLOBALClaimed by REvil / SodinokibiFirst sighting
Posted to leak site Jun 1, 2020bd_345d0588be0850f8
Clustered 3 filings across 3 jurisdictions · filing window Jun 1, 2020 → Sep 30, 2020. View entity profile → Other incidents for this victim →
incident inc_8d6b52e01bf14d17 · 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.
DE MT
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jun 14, 2020
When the intrusion reportedly occurred, per the linked filings
Jun 14, 2020
Reported by DELAWARE AG filing
Crozer-Keystone Health System notified Delaware residents of a June 14, 2020 ransomware incident affecting a small portion of hospital data. The attack involved a known ransomware group and resulted in the exfiltration of patient health and personal information, including names, DOBs, SSNs, and lab results. The malware was isolated, systems restored, and all stolen data recovered. The organization engaged forensic investigators, enhanced security controls, and offered one year of free credit monitoring.
Crozer-Keystone Health System reported a data breach to the Montana Attorney General. The breach was reported on 2020-09-30. The breach occurred from 6/14/2020 to 6/15/2020. 9 Montana residents were affected.
Affected (this 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.