HackingEducationEducationStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)EducationEmploymentLowContained

Marsh Valley School District No. 21

bd_7d0948e8dba74d63 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 7, 2025

Filed

Jan 9, 2025

To disclose

2 days

Affected

Not disclosed

Confidence

65%

Full breach record for Marsh Valley School District No. 21 →

Marsh Valley School District No. 21 notified the Idaho Attorney General on January 9, 2025, of a data breach involving its PowerSchool Student Information System. An unauthorized party accessed student and teacher data using compromised credentials. The district engaged CyberSteward and CrowdStrike for investigation and negotiated with the attacker to destroy stolen data.

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Incident timeline

discovery → filing · 2 days

Jan 7, 2025

Discovered

Jan 9, 2025

Filed

vs. sector median

8 wks faster

Part of PowerSchool supply-chain incident (2025) — a supply-chain cascade affecting multiple organizations.View cascade →

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Marsh Valley School District No. 21
norm: marsh valley school district no 21

Name: Marsh Valley School District No. 21
norm: marsh valley school district no 21
Industry: Educationllm

Discovered: Jan 7, 2025
Materiality determined: —
Notification sent: Jan 9, 2025
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Idaho Attorney General's Office Consumer Protection Division
Initial access: valid_credentials

During the incident: Engaged CyberSteward and CrowdStrike to investigate and respond to the cybersecurity attack
Engaged with the party who breached their system and negotiated an agreement through which the party destroyed the stolen data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 2 days(2 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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.ag.idaho.gov/content/uploads/2025/01/1-9-2025-Marsh-Valley-School-District-No.-21-.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 9, 2025
Raw hash: b7b29e5372f4ce1987a97a162756c4fe2d1c703df2d32bbc718d1f053008cad7

Reporting entityMarsh Valley School District No. 21

Victim entityMarsh Valley School District No. 21

Incidentdiscovered Jan 7, 2025

Stated responseEngaged CyberSteward and CrowdStrike to investigate and respond to the cybersecurity attack

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov