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Leak SiteState AGConfirmed4 filings · 3 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmedusahigh sensitivity
Merged incident · 4 filings

Great Valley School District — October 2023 breach

Clustered 4 filings across 4 jurisdictions · filing window Nov 29, 2023 → Dec 19, 2023. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

4 filings

States

3

Affected · reported

8

First → last filing

Nov 29, 2023 → Dec 19, 2023

Merge confidence

100%

incident inc_85619c0fd56148f4 · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings and 1 unverified claim. The filings describe unauthorized access. Intrusion Oct 31, 2023–Nov 10, 2023, discovered Nov 10, 2023 — the first regulatory filing landed 39 days later. 8 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), PII, and 1 more. Notifications rolled out on a 20-day schedule across 3 filings beginning Nov 29, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay
39days

Discovered → first regulatory filing

Discovery variance
0days

Range of discovered_at dates across filings

Leak precedence
20days before filing

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
20days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksVermont⏱ VT AG >14 bdayMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

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Great Valley School District data breach (2023) · DisclosureLens