norm: marsh valley school district no 21USno LEI · no CIKMax severity: Low

Canonical registry

Marsh Valley School District No. 21

ent_ebd1342a31408259e04334e6

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Disclosures

1

State AG · 1 jurisdiction

Multi-filing incidents

—

no multi-filing incident in sample

Max affected reported

—

no filed count in sample

Leak-site claims

0

none in sample

Identity resolution

Canonical name: Marsh Valley School District No. 21
Normalized: marsh valley school district no 21— dedupe via name-norm; Microsoft / MSFT collapse to one row
GLEIF LEI: No match
SEC EDGAR CIK: None — not an SEC registrant
Domain: None on record

Disclosure history (1)newest first

Idaho State AGas victim2025-01-09
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.

Supply-chain cascadesreviewed and confirmed

Marsh Valley School District No. 21’s filing is one of at least 65 in the PowerSchool supply-chain incident (2025).