MalwareEducationEducationRansomwareData EncryptedPIILowActive

Kenosha Unified School District

bd_c09f257f9faf2c63 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 20, 2022

Filed

Nov 23, 2022

To disclose

5 weeks

Affected

3state residents only

Linked

4 filings

Confidence

66%

Full breach record for Kenosha Unified School District →

Kenosha Unified School District experienced a ransomware incident. The district discovered the incident and concluded on or about October 20, 2022 that personal information may have been accessed. The district engaged outside cybersecurity professionals, contained the threat, and is offering two years of credit monitoring. Investigation was ongoing at the time of notification.

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Incident timeline

discovery → filing · 5 weeks / 34 days

Oct 20, 2022

Discovered

Nov 23, 2022

Filed

vs. sector median

4 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siterevilbd_df8ac0767899b1e52022-11-28 · +6dCandidate
Leak Sitesnatchbd_2c72f02b213468512022-10-24 · +30dVerified by operator

Regulatory filings (1) · sorted by filing gap

New Hampshire State AGbd_81587e2f5f5fb16f2022-11-29 · +6dVerified by operator

Name: Kenosha Unified School District
norm: kenosha unified school district
Domain: kusd.edu

Name: Kenosha Unified School District
norm: kenosha unified school district
Domain: kusd.edu
Industry: Educationllm

Discovered: Oct 20, 2022
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: PII
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Disabled all unauthorized access to the network
Launched an investigation in consultation with outside cybersecurity professionals
Offering a complimentary two-year membership of Experian IdentityWorksSM Credit 3B
Strengthened our network
Implemented additional security improvements recommended by third-party cyber security experts
Resetting account passwords
Strengthening our password security policies
Ensuring compliance with multi-factor authentication for network access
Upgrading our firewall
Deploying endpoint detection software
Changes made: Strengthened our network
Implemented additional security improvements recommended by third-party cyber security experts
Resetting account passwords
Strengthening our password security policies
Ensuring compliance with multi-factor authentication for network access
Upgrading our firewall
Deploying endpoint detection software
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(34 days from discovery to filing)
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 ↗

Montana State AGNov 23 · first · this page

New Hampshire State AG+6d

Pattern: first filing Nov 23 (MT), last Nov 29 (NH) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-741.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 23, 2022
Raw hash: 9c73fd53e5d43e38cddf37de396956804128207b1e027c8dbbd5a5e07f985ffa

Linked disclosures

Ransomware claims (2)

Regulatory filings (1) · sorted by filing gap

Reporting entityKenosha Unified School District

Victim entityKenosha Unified School District

Incidentdiscovered Oct 20, 2022

Stated responseDisabled all unauthorized access to the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov