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State AGConfirmed41 filings · 12 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedcritical sensitivity
Merged incident · 41 filings

ARTHUR J. GALLAGHER & CO. — June 2020 breach

Clustered 41 filings across 12 jurisdictions · filing window Jun 30, 2021 → Dec 10, 2021 (dated filings only). View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

41 filings

States

12

Affected · reported

1,140,520

First → last dated filing

Jun 30, 2021 → Dec 10, 2021

Merge confidence

100%

incident inc_dda5ac5b5d5848e6 · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 41 regulatory filings. Intrusion Jun 3, 2020–Sep 26, 2020, discovered Sep 26, 2020. 1,140,520 individuals reported across the linked filings. Data reported: Government ID, Biometric, Identity (basic), and 8 more. Notifications rolled out on a 163-day schedule across 38 dated filings beginning Jun 30, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental
Discovery variance
270days

Range of discovered_at dates across filings

Filing span
163days

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 clocksCalifornia✗ CA 60-day late · 277dWashington✗ WA AG >90dMaine⏱ ME AG >30d · 42dMassachusetts✓ MA credit monitoring dueHawaii✓ HI CRA notice dueOregon✓ OR AG ≤45dSouth Carolina✓ SC CRA notice dueFull clock table in Litigation Timeline

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Arthur J. Gallagher & Co. data breach (2020) — filings in 12 jurisdictions, June 2021 · DisclosureLens