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Confirmed5 filings · 3 statesUnverified claimConfirmedEnforcedmoderate sensitivity

Merged incident · 5 filings

Alexion Pharmaceuticals, Inc — February 2024 breach

Clustered 5 filings across 3 jurisdictions · filing window May 13, 2024 → May 20, 2024. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

5 filings

States

Affected · reported

not comparable

First → last filing

May 13, 2024 → May 20, 2024

Merge confidence

100%

incident inc_00188429fa1e459c · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings. The filings describe hacking. Intrusion Feb 8, 2024, discovered Feb 12, 2024 — the first regulatory filing landed 91 days later. Data reported: Identity (basic), PII, Health (basic), and 1 more. Notifications rolled out on a 7-day schedule across 5 filings beginning May 13, 2024. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

91days

Discovered → first regulatory filing

Discovery variance

64days

Range of discovered_at dates across filings

Filing span

7days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksVermont⏱ VT AG >14 bdayFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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