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 clocksLeak gap⏱ Leak >30dFull clock table in Litigation Timeline
HHS OCRConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Affected (total reported)
5,058
Data types
4
PHI · Health (basic) · Identity (basic)
Jurisdictions
1
TX
Linked filings
1
all HHS OCR
Sensitive data
identity_government
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
City of Dallas reported to HHS on 2023-08-03 a Hacking/IT Incident affecting 5,058 individuals. Breached information located on Network Server. The incident involved ransomware encrypting PHI including names, addresses, DOB, SSN, and treatment data. The entity implemented additional administrative and technical safeguards.
Affected (this filing): 5,058
Leak >30dHHS 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.