School District of Elmbrook
bd_c7b6cdac2a0616dd · schema v1 · pii pii-v1
Full breach record for School District of Elmbrook →School District of Elmbrook notified individuals of unauthorized network access occurring August 23-27, 2022. Discovered Feb 27, 2023, after forensic review confirmed personal information (PII, SSN, DLs) was removed. District engaged external cybersecurity professionals and offered 12 months of Experian IdentityWorks credit monitoring.
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Incident timeline — partial
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Breach window unknown
Mar 16, 2022
Filed
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Sitevicesocietybd_7f2b03a8cf189ee72022-09-04 · +172dVerified by operator
Regulatory filings (5) · sorted by filing gap
- Indiana State AGbd_3d648f4b42e330982022-09-23 · +191dVerified by operator
- Maine State AGbd_7a271ebaf508f2b02022-09-23 · +191dVerified by operator
- Vermont State AGbd_07f8e00999ac259b2023-02-24 · +345dCandidate
- Massachusetts State AGbd_f7b07cb2af127ba42023-03-16 · +365dVerified by operator
Show 1 more filing ↓Show fewer ↑up to 369d gap
- New Hampshire State AGbd_132e2b67c110056b2023-03-20 · +369dVerified
Filing propagation · 6 filings · 6 states
View merged incident ↗Pattern: first filing Mar 16 (MT), last Mar 20 (NH) — a 369-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.