One linked filing — more sources may join as they report · filed Jan 16, 2017. View entity profile → Other incidents for this victim →
incident inc_1b729886f64f419e · merge_method deterministic
Discovered → first regulatory filing
Not recorded for this incident
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.
PHI · Health (basic) · Identity (basic)
VA
all HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
Nov 17, 2016
Reported by HHS OCR filing
Sentara Healthcare reported to HHS on 2017-01-16 a Hacking/IT Incident affecting 5454 individuals. Breached information located on Network Server. The incident involved business associate Medstreaming, where a cybersecurity incident impacted vascular and thoracic patient records (2012-2015). The CE and BA hired forensic teams, rebuilt the platform, and improved technical safeguards.
Affected (this filing): 5,454
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.