GLOBALClaimed by MeowFirst sightinglinked via shared-victim match · 100%
Posted to leak site Dec 12, 2023bd_f86d359e2600fccc
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Clustered 2 filings across 2 jurisdictions · filing window Dec 12, 2023 → Jun 25, 2024. View entity profile → Other incidents for this victim →
incident inc_07b9c9622f474321 · merge_method deterministic · confidence 100%
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.
Health (basic) · Identity (basic)
NY
Leak Site · HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
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Memorial Sloan Kettering Cancer Center reported to HHS on 2024-06-25 a Hacking/IT Incident (email phishing scheme) affecting 12,274 individuals. An employee was targeted via phishing, exposing PHI including names, addresses, dates of birth, diagnoses, lab results, medications, and other treatment information. Breached information was located in Email. The CE notified HHS, affected individuals, and media, and implemented additional safeguards and staff retraining.
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): 12,274