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Leak SitePressHHS OCRState AGConfirmed11 filings · 6 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedrhysidacritical sensitivity
Merged incident · 11 filings

ANN & ROBERT H. LURIE CHILDREN'S HOSPITAL OF CHICAGO — January 2024 breach

Clustered 11 filings across 7 jurisdictions · filing window Aug 8, 2023 → Jun 27, 2024. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

11 filings

States

6

Affected · reported

791,784

First → last filing

Aug 8, 2023 → Jun 27, 2024

Merge confidence

100%

incident inc_42763dc44889420f · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 8 regulatory filings, 1 press report and 2 unverified claims. The filings describe unauthorized access. Intrusion Jan 26, 2024–Jan 31, 2024, discovered Jan 26, 2024. 791,784 individuals reported across the linked filings. Data reported: Government ID, Minor, PHI, and 5 more. Notifications rolled out on a 324-day schedule across 8 filings beginning Aug 8, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental
Discovery variance
143days

Range of discovered_at dates across filings

Leak precedence
Noneclaim trailed by 176d

Days between the first leak-site claim and the first regulatory filing. Positive = the claim came first (public exposure before disclosure). Negative = the claim trailed the filing, so there was no pre-disclosure leak. Counts regulatory filings only — press coverage is not a regulatory disclosure.

Filing span
324days

Time between earliest and latest filing

Not recorded for this incident

Materiality delta · SEC filing delay — no SEC 8-K in this cluster.

Regulatory clocksVermont✗ VT AG >45 bdayLeak gap⏱ Leak >90dHIPAA✓ HHS notifiedFull clock table in Litigation Timeline

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Ann & Robert H. Lurie Children's Hospital of Chicago data breach (2023) · DisclosureLens