Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Regulatory clocksHIPAA✓ HHS notifiedFull clock table in Litigation Timeline
HHS OCRConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Affected (total reported)
74,328
Data types
2
Health (basic) · Identity (basic)
Jurisdictions
1
FEDERAL
Linked filings
1
all HHS OCR
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
South Shore Hospital (MA) reported to HHS on 2020-09-23 that its business associate experienced a ransomware attack affecting the ePHI of 74,328 individuals. Breached information was located on a Network Server and included names, addresses, dates of birth, and treatment information. The CE notified HHS, affected individuals, and the media.
Affected (this filing): 74,328
HHS notified
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.