HackingTechnologyEducationInformationVulnerability ExploitCapture Stored DataData ExfiltratedCustomer Data InvolvedTargetedPIIIdentity (basic)Government IDHighContained

PowerSchool Holdings, Inc.

bd_5d6ca0c98c81d7ed · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 28, 2024

Filed

Apr 28, 2025

To disclose

17 weeks

Affected

9,469state residents only

Confidence

68%

Full breach record for PowerSchool Holdings, Inc. →

PowerSchool Holdings, Inc. filed a supplemental notice with the New Hampshire Attorney General regarding a December 28, 2024 cybersecurity incident. Unauthorized exfiltration of personal information occurred via the PowerSource customer support portal. The incident affected 9,469 New Hampshire residents, involving student and educator data. PowerSchool engaged forensic experts and is offering two years of identity protection and credit monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 17 weeks / 121 days

Dec 28, 2024

Discovered

Apr 28, 2025

Filed

vs. sector median

1 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed9,469 affectedView incident

Name: PowerSchool Holdings, Inc.
norm: powerschool holdings

Name: PowerSchool Holdings, Inc.
norm: powerschool holdings
Industry: TechnologyllmEducationllm

Discovered: Dec 28, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 9,469state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Provided update to New Hampshire Attorney General Consumer Protection Bureau
Initial access: exploit_public_facing

During the incident: Engaged cybersecurity response protocols
Mobilized senior leadership and third-party cybersecurity experts to conduct a forensic investigation
Offering two years of complimentary identity protection services
Offering two years of complimentary credit monitoring services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(121 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://mm.nh.gov/files/uploads/doj/remote-docs/powerschool-holdings-20250428.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 28, 2025
Raw hash: f453a531e397be0012f08f848683b32d5a46fc7d70f02dd0250c9b66d65f3c0f

Reporting entityPowerSchool Holdings, Inc.

Victim entityPowerSchool Holdings, Inc.

Incidentdiscovered Dec 28, 2024

Stated responseEngaged cybersecurity response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov