MalwareEducationEducationRansomwareData EncryptedCustomer Data InvolvedPIILowContained

Fullerton Joint Union High School District

bd_29076c4405417605 · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 14, 2023

Filed

Jan 25, 2024

To disclose

10 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

64%

Full breach record for Fullerton Joint Union High School District →

Fullerton Joint Union High School District experienced a ransomware attack on November 14, 2023. The investigation determined that a limited amount of data was potentially accessed without authorization. The district engaged third-party specialists, notified law enforcement, implemented additional security measures, and offered 12 months of complimentary credit monitoring and identity protection services to affected individuals.

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Incident timeline

discovery → filing · 10 weeks / 72 days

Nov 14, 2023

Begins

Nov 14, 2023

Discovered

Jan 25, 2024

Filed

vs. sector median

+2 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Montana State AGbd_4f57a45ca06350842024-01-25Candidate
Indiana State AGbd_54eda920446e41e22024-01-05 · +20dVerified

Name: Fullerton Joint Union High School District
norm: fullerton joint union high school district

Name: Fullerton Joint Union High School District
norm: fullerton joint union high school district
Industry: Educationllm

Discovered: Nov 14, 2023
Breach occurred: Nov 14, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PII
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Began an investigation with the assistance of third-party specialists
Implemented additional security measures to further protect our network
Notified law enforcement
Offering access to twelve months of complimentary credit monitoring and identity protection services
Changes made: Implemented additional security measures to further protect our network and reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(72 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGJan 5 · first

Montana State AG+20d

California State AG+20d · this page

Pattern: first filing Jan 5 (IN), last Jan 25 (CA) — a 20-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://oag.ca.gov/ecrime/databreach/reports/sb24-579899
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 25, 2024
Raw hash: f6208d90db5ba841127553b03e9029d5d78d95f6dacd3c5ca9b9c2b8cfdc0850

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityFullerton Joint Union High School District

Victim entityFullerton Joint Union High School District

Incidentdiscovered Nov 14, 2023

Stated responseBegan an investigation with the assistance of third-party specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov