GLOBALClaimed by QilinFirst sightinglinked via shared-victim match · 100%
Posted to leak site Nov 5, 2025bd_d270903e72841761
Clustered 3 filings across 2 jurisdictions · filing window Nov 5, 2025 → Apr 24, 2026. View entity profile → Other incidents for this victim →
incident inc_ef60caf589034f6a · 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.
PII · Government ID
ME
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 5, 2025
When the intrusion reportedly occurred, per the linked filings
Mar 31, 2026
Reported by MAINE AG filing
Columbia Medical Practice disclosed an external system breach (hacking) on 11/05/2025 where an unknown cyber actor installed a virus to lock files and exfiltrated data including names and Social Security numbers. Discovered on 03/31/2026. Six Maine residents were notified on 04/24/2026. The healthcare facility offered one year of credit monitoring and identity restoration via TransUnion.
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): 6