QUEST DIAGNOSTICS INCORPORATED — October 2021 breach

Clustered 6 filings across 6 jurisdictions · filing window Nov 16, 2021 → Nov 22, 2021. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

6 filings

States

Affected · reported

5,325

First → last filing

Nov 16, 2021 → Nov 22, 2021

Merge confidence

100%

incident inc_37477d99ad354f1e · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 6 regulatory filings. The filings describe a misconfiguration. Intrusion Oct 29, 2021, discovered Oct 29, 2021 — the first regulatory filing landed 18 days later. 5,325 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Employment, and 1 more. Notifications rolled out on a 6-day schedule across 6 filings beginning Nov 16, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

18days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

6days

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 OK · 18dMaine✓ ME AG ≤30d · 18dMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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