Enforced9 filings · 4 statesUnverified claimConfirmedEnforcedxinglockerhigh sensitivity

Merged incident · 9 filings

OSF HEALTHCARE SYSTEM — February 2020 breach

Clustered 9 filings across 5 jurisdictions · filing window Oct 19, 2020 → Jul 29, 2026. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Enforced

Members

9 filings

States

Affected · reported

94,171

First → last filing

Oct 19, 2020 → Jul 29, 2026

Merge confidence

100%

incident inc_097b870979f14c2a · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 8 regulatory filings and 1 unverified claim. Intrusion Feb 7, 2020–Apr 23, 2021, discovered May 20, 2020 — the first regulatory filing landed 152 days later. 94,171 individuals reported across the linked filings. Data reported: Government ID, PII, Identity (basic), and 3 more. Notifications rolled out on a 2109-day schedule across 8 filings beginning Oct 19, 2020. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

152days

Discovered → first regulatory filing

Discovery variance

338days

Range of discovered_at dates across filings

Leak precedence

Noneclaim trailed by 211d

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

2109days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksLeak gap⏱ Leak >90dHIPAA✓ HHS notifiedFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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