Clustered 4 filings across 3 jurisdictions · filing window Jan 31, 2024 → Jun 27, 2024. View entity profile → Other incidents for this victim →
incident inc_22419d716eeb4dde · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Materiality delta · SEC filing delay — no SEC 8-K in this cluster; needs two dated filings.
PII · PHI
IL ME
Leak Site · HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 26, 2024 → Jan 31, 2024
When the intrusion reportedly occurred, per the linked filings
Ann & Robert H. Lurie Children's Hospital of Chicago Ann & Robert H. Lurie Children's Hospital of Chicago provides superior pediatric care in a setting that offers the latest benefits and innovations in medical technology, research and family-friendly design.
Ann & Robert H. Lurie Children's Hospital of Chicago Ann & Robert H. Lurie Children's Hospital of Chicago provides superior pediatric care in a setting that offers the latest benefits and innovations in medical technology, research and family-friendly design.
Jun 17, 2024
Reported by MAINE AG filing
Ann & Robert H. Lurie Children's Hospital of Chicago suffered an external cybersecurity attack in which cybercriminals accessed hospital systems between January 26–31, 2024. The hospital took systems offline on January 31 including Epic EHR and MyChart. The breach was discovered on June 17, 2024. PII and PHI of patients and minors were impacted. 791,784 individuals were affected nationally; 8 Maine residents were affected. Experian IdentityWorks (24-month) was offered as remediation.
Ann & Robert H. Lurie Children's Hospital of Chicago reported to HHS on 2024-06-27 a Hacking/IT Incident affecting 775,860 individuals. Breached information located on Network Server. The cyberattack exposed PHI including names, addresses, DOB, SSN, driver's license, claims, financial info, diagnoses, lab results, and medications. The CE notified HHS, individuals, and media, and implemented additional technical safeguards.
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.
Affected (this filing): 8
Affected (this filing): 775,860