UnknownEducationEducationFinancial accountLow

Winnebago Public Schools

bd_d6edddd3778a6127 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Dec 5, 2025

To disclose

—

Affected

2state residents only

Linked

2 filings

Confidence

95%

Full breach record for Winnebago Public Schools →

Winnebago Public Schools reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-05. 2 Massachusetts residents were affected.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Dec 5, 2025

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Nebraska State AGbd_49de8a2ee82c4b662025-12-05Candidate

Name: Winnebago Public Schools
norm: winnebago public schools

Name: Winnebago Public Schools
norm: winnebago public schools
Industry: Educationregulator portal

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Financial account
Data elements: Financial account number
Stated not affected: Social Security numberMedical informationDriver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown
Threat actor: External

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Nebraska State AGDec 5 · first

Massachusetts State AGDec 5 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.mass.gov/doc/data-breach-report-2025/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 5, 2025
Raw hash: e2af08d838d71ff16e2600e32a201834382b9acd8128e8ac1e35ec9c3dd7effb

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityWinnebago Public Schools

Victim entityWinnebago Public Schools

IncidentUnknown

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov