Discovery variance · Leak precedence · Materiality delta · SEC filing delay — 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)
604
Data types
3
PHI · Health (basic) · Financial account
Jurisdictions
1
TX
Linked filings
2
all HHS OCR
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Memorial Hermann Health System reported to HHS on 2019-05-13 a Unauthorized Access/Disclosure affecting 604 individuals. Breached information located on Electronic Medical Record, Email. An employee fraudulently used patient financial information for personal use.
Memorial Hermann Health System reported to HHS on 2019-07-02 a Unauthorized Access/Disclosure affecting 507 individuals. Breached information located on Email. A workforce member inadvertently emailed a spreadsheet containing PHI (names, medical record numbers, financial/insurance info, clinical info). The CE sanctioned the employee, revised procedures, and contacted the recipient to ensure deletion.
Affected (this filing): 507
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.