One linked filing — more sources may join as they report · filed Apr 21, 2011. View entity profile → Other incidents for this victim →
incident inc_23a3592ce4ef44df · 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.
Health (basic) · Identity (basic)
FEDERAL
all HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
Mar 7, 2011
Reported by HHS OCR filing
On March 7, 2011, Keith & Fisher, DDS, PA discovered its server had been hacked, potentially exposing the clinical and demographic data of 6,000 individuals. The entity reported the breach to HHS on April 21, 2011. In response, the entity enhanced its information systems security, improved its password policy, and implemented new access controls including a firewall and VPN.
Affected (this filing): 6,000
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.