HackingEducationEducationEmployee Data InvolvedDelayed DiscoveryIdentity (basic)Government IDEmploymentPIIMediumResolved

JEFFERSON SCHOOL DISTRICT

bd_9e1e448bfaa08dec · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Mar 4, 2025

To disclose

—

Affected

Not disclosed

Confidence

75%

Full breach record for JEFFERSON SCHOOL DISTRICT →2 incidents on file

Jefferson Elementary School District experienced a cybersecurity incident on September 27, 2024 involving computer servers used to store archived data. An investigation completed in February 2025 discovered a file containing employee information including names, addresses, Social Security numbers, and salary data. The district notified law enforcement, secured systems, and offered 12 months of Experian IdentityWorks credit monitoring to affected employees.

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Incident timeline

Sep 27, 2024

Begins

Mar 4, 2025

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: JEFFERSON SCHOOL DISTRICT
norm: jefferson school district

Name: JEFFERSON SCHOOL DISTRICT
norm: jefferson school district
Industry: Educationllm

Discovered: —
Breach occurred: Sep 27, 2024
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDEmploymentPII
Data elements: Social Security number
Attack vector: Unauthorized Access
Threat actor: External
Regulator citations: Notified California Attorney General

During the incident: Initiated an investigation
Took steps to secure our systems
Notified law enforcement
Changes made: Offering a 12-month free membership to Experian® IdentityWorks℠ Credit 3B
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.ca.gov/ecrime/databreach/reports/sb24-599415
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 4, 2025
Raw hash: 5757388a81decd188fcafccbf4cbd098a85c92237f2480ab4bad94b34d654e35

Reporting entityJEFFERSON SCHOOL DISTRICT

Victim entityJEFFERSON SCHOOL DISTRICT

IncidentUnauthorized Access

Stated responseInitiated an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov