HackingEducationEducationStolen CredentialsData MishandlingData ExfiltratedCustomer Data InvolvedSupply Chain (3P Vendor)Identity (basic)Government IDMediumContained

OneSchool Global North America

bd_fd48c510e4abb6df · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 9, 2025

Filed

Feb 5, 2025

To disclose

27 days

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for OneSchool Global North America →

OneSchool Global North America (OSGNA) issued a supplemental notice regarding a cybersecurity incident involving its Student Information System vendor, PowerSchool. Unauthorized exfiltration of student and family PII (names, addresses, SSNs) occurred via PowerSource portal around Dec 28, 2024. OSGNA notified law enforcement and is offering 2 years of identity protection and credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 12 days

discovery → filing · 27 days

Dec 28, 2024

Begins

Jan 9, 2025

Discovered

Feb 5, 2025

Filed

vs. sector median

5 wks faster

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

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Maryland State AGbd_f601050fa97dc34c2025-01-31 · +5dCandidate

Name: OneSchool Global North America
norm: oneschool global north america
Domain: na.oneschoolglobal.com

Name: OneSchool Global North America
norm: oneschool global north america
Domain: na.oneschoolglobal.com
Industry: Educationllm

Discovered: Jan 9, 2025
Breach occurred: Dec 28, 2024
Undetected for: 12 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1041 Exfiltration Over C2 ChannelT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed notice with Montana Department of Justice
Third party: via PowerSchool
Initial access: external_remote_services

During the incident: Worked with incident response team to determine scope
Communicating with PowerSchool
Informing law enforcement
Changes made: Offering complimentary identity protection services for two years
Offering complimentary credit monitoring services for two years
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 days(27 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 ↗

Maryland State AGJan 31 · first

Montana State AG+5d · this page

Pattern: first filing Jan 31 (MD), last Feb 5 (MT) — a 5-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/2025/03/Consumer-notification-letter-171.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 5, 2025
Raw hash: 5357e993b3cb4bf84ae75e6501dcca0f97a86786ac08c76fa7053ffed8cd7db9

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityOneSchool Global North America

Victim entityOneSchool Global North America

Incidentdiscovered Jan 9, 2025

Stated responseWorked with incident response team to determine scope

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov