HackingTechnologyEducationInformationVulnerability ExploitData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)EducationCriticalActive

PowerSchool

bd_782d885f67a40c38 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Dec 28, 2024

Filed

Nov 13, 2025

To disclose

—

Affected

145,783state residents only

Confidence

66%

Full breach record for PowerSchool →4 incidents on file

PowerSchool, a technology service provider for school districts, reported a cybersecurity incident in Maryland affecting approximately 145,783 residents. The incident occurred between December 19 and December 28, 2024, involving unauthorized exfiltration of personal information (names, SSNs, DOBs, limited medical alerts) via a customer support portal. PowerSchool engaged forensic experts and law enforcement, and is offering credit monitoring through Experian.

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Incident timeline

undetected · 9 days

Dec 19, 2024

Begins

Dec 28, 2024

Discovered

Nov 13, 2025

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed145,783 affectedView incident

Name: ROPES & GRAY LLP
norm: ropes gray

Name: PowerSchool
norm: powerschool
Domain: registration.powerschool.com
Industry: TechnologyllmEducationllm

Discovered: Dec 28, 2024
Breach occurred: Dec 19, 2024 – Dec 28, 2024
Undetected for: 9 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 27, 2025
Affected individuals: 145,783state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Maryland Attorney General's Identity Theft Unit
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
Reported the incident to law enforcement
Engaged Experian to offer two years of complimentary identity protection and /or credit monitoring services
Source: Quoted from the filing itself, not independently verified.

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://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376245.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 13, 2025
Raw hash: 6b5b081e7d3a2422d89017b819817e793c028a227bdc8dacd47ca1ba033b428a

Reporting entityROPES & GRAY LLP

Victim entityPowerSchool

Incidentdiscovered Dec 28, 2024

Stated responseEngaged cybersecurity response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov