UNIVERSITY OF SOUTHERN CALIFORNIA — September 2021 breach

Clustered 7 filings across 6 jurisdictions · filing window Dec 2, 2021 → May 6, 2022. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

7 filings

States

Affected · reported

1,239

First → last filing

Dec 2, 2021 → May 6, 2022

Merge confidence

100%

incident inc_0300769f47a8436b · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 7 regulatory filings. The filing describes unauthorized access. Intrusion Sep 28, 2021, discovered Oct 1, 2021 — the first regulatory filing landed 62 days later; 2 later filings were flagged late. 1,239 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Education, and 1 more. Notifications rolled out on a 155-day schedule across 7 filings beginning Dec 2, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

62days

Discovered → first regulatory filing

Discovery variance

48days

Range of discovered_at dates across filings

Filing span

155days

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 · 62dMaine⏱ ME AG >30d · 40dMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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