MalwareEducationEducationRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Hacienda La Puente Unified School District

bd_1d319057400a676a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 12, 2024

Filed

Sep 2, 2025

To disclose

17 months

Affected

1state residents only

Linked

7 filings

Confidence

66%

Full breach record for Hacienda La Puente Unified School District →2 incidents on file

Hacienda La Puente Unified School District notified the New Hampshire Attorney General of a ransomware incident affecting one NH resident. Unauthorized access occurred Feb 9–Apr 12, 2024; discovered Apr 12, 2024. Data at risk: name, SSN, driver's license. Notification sent Aug 15, 2025, offering 12 months credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 63 days

discovery → filing · 17 months / 508 days

Feb 9, 2024

Begins

Apr 12, 2024

Discovered

Sep 2, 2025

Filed

vs. sector median

+64 wks slower

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Vermont State AGbd_dc6c623cdafb506c2025-08-29 · +4dVerified
California State AGbd_40af77a4100bceab2025-09-17 · +15dVerified
Nebraska State AGbd_87470dac93757c552025-08-15 · +18dVerified
Massachusetts State AGbd_d6b08be6254c72d52025-07-04 · +60dVerified

Show 2 more filings ↓up to 61d gap

California State AGbd_08d378f872532da32025-07-03 · +61dCandidate
Indiana State AGbd_a23ed27bd81cbd0a2025-07-03 · +61dVerified

Name: Hacienda La Puente Unified School District
norm: hacienda la puente unified school district
Domain: hlpschools.org

Name: Hacienda La Puente Unified School District
norm: hacienda la puente unified school district
Domain: hlpschools.org
Industry: Educationllm

Discovered: Apr 12, 2024
Breach occurred: Feb 9, 2024 – Apr 12, 2024
Undetected for: 63 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 15, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Reported this incident to federal law enforcement and the California Cybersecurity Integration Center

During the incident: Engaged third-party forensic specialists to investigate the full scope and nature of this incident
Secured the network
Restored systems to operability
Reported this incident to federal law enforcement and the California Cybersecurity Integration Center
Sent written notice of this incident to the potentially impacted New Hampshire resident
Offered complimentary credit monitoring and identity theft protection services for twelve (12) months
Changes made: Provided complimentary credit monitoring and identity theft protection services for twelve (12) months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 months(508 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

California State AGJul 3 · first

Indiana State AGJul 3 · first

Massachusetts State AG+1d

Nebraska State AG+43d

Vermont State AG+57d

New Hampshire State AG+61d · this page

California State AG+76d

Pattern: first filing Jul 3 (CA), last Sep 17 (CA) — a 76-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://mm.nh.gov/files/uploads/doj/remote-docs/hacienda-la-puente-unified-school-district-20250902.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2025
Raw hash: 56c32178335633b7f090a1e873b6a6ad5883cb5c3cf3d51a0ee76221d4be71b2

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityHacienda La Puente Unified School District

Victim entityHacienda La Puente Unified School District

Incidentdiscovered Apr 12, 2024

Stated responseEngaged third-party forensic specialists to investigate the full scope and nature of this incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov