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Leak SitePressState AGConfirmed7 filings · 5 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedblackbytehigh sensitivity
Merged incident · 7 filings

Chambersburg Area School District — August 2023 breach

Clustered 7 filings across 6 jurisdictions · filing window Sep 7, 2023 → Oct 26, 2023. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

7 filings

States

5

Affected · reported

4,265

First → last filing

Sep 7, 2023 → Oct 26, 2023

Merge confidence

100%

incident inc_102c5890b2c34470 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings, 1 press report and 1 unverified claim. The filings describe unauthorized access. Intrusion Aug 21, 2023–Aug 26, 2023, discovered Aug 27, 2023 — the first regulatory filing landed 60 days later. 4,265 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), and Financial account. Notifications rolled out on a 60-day schedule across 5 filings beginning Sep 7, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay
60days

Discovered → first regulatory filing

Discovery variance
38days

Range of discovered_at dates across filings

Leak precedence
49days 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
60days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksLeak gap⏱ Leak >30dVermont⏱ VT AG >14 bdayFull clock table in Litigation Timeline

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Chambersburg Area School District data breach (2023) · DisclosureLens