Clustered 2 filings across 1 jurisdiction · filed Aug 3, 2017. View entity profile → Other incidents for this victim →
incident inc_edc07148d389418d · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
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.
PHI · Health (basic) · Identity (basic)
CA
HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
May 31, 2017 → Jun 2, 2017
When the intrusion reportedly occurred, per the linked filings
Jun 2, 2017
Reported by CALIFORNIA AG filing
City of Hope notified California regulators and patients of a phishing incident in May 2017. The attack compromised four staff email accounts containing patient PHI (names, MRNs, DOB, clinical info). No SSN or financial data was involved. City of Hope secured accounts, engaged forensic investigators, and reported to law enforcement.
City of Hope reported to HHS on 2017-08-03 a Hacking/IT Incident affecting 3400 individuals. Breached information located on Email. A workforce member was victim of an email phishing scheme. PHI involved included names, addresses, DOB, SSN, diagnosis, lab results, medications, and treatment info. Remote VPN access was disabled.
Affected (this filing): 3,400
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.