HackingEducationEducationSupply Chain (3P Vendor)Employee Data InvolvedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountEmploymentPHIMediumContained

Corvallis School District 509J

bd_dbf282eb9abc4882 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 13, 2025

Filed

Feb 28, 2025

To disclose

7 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

66%

Full breach record for Corvallis School District 509J →2 incidents on file

Corvallis School District 509J notified Vermont residents of a data breach involving third-party vendor Carruth Compliance Consulting. Unauthorized access occurred on December 21, 2024, and was discovered on January 13, 2025. Affected data includes names, Social Security numbers, financial account information, and potentially driver's license numbers, W-2s, and medical billing information for employees and beneficiaries. The district engaged forensic specialists, notified the FBI, and is offering credit monitoring services.

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Vermont clock⏱ VT AG >14 bday7 weeks discovery → filing

Incident timeline

undetected · 23 days

discovery → filing · 7 weeks / 46 days

Dec 21, 2024

Begins

Jan 13, 2025

Discovered

Feb 28, 2025

Filed

vs. sector median

2 wks faster

This filing is one of 2 about the same incident.View merged incident

Part of Carruth Compliance Consulting supply-chain incident (2025) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Maryland State AGbd_813a223a9bc727542025-02-28Candidate

Name: Corvallis School District 509J
norm: corvallis school district 509j
Domain: csd509j.net

Name: Corvallis School District 509J
norm: corvallis school district 509j
Domain: csd509j.net
Industry: Educationllm

Discovered: Jan 13, 2025
Breach occurred: Dec 21, 2024
Undetected for: 23 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 28, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountEmploymentPHI
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Regulator citations: Notified the Federal Bureau of Investigation
Third party: via Carruth Compliance Consulting
Initial access: supply_chain

During the incident: Notified the Federal Bureau of Investigation
Worked with third-party specialists to investigate the activity
Identified all current and former employees whose personal information was shared with Carruth
Offering complimentary credit monitoring and identity theft protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(46 days from discovery to filing)
Compliance flags: VT AG >14 bday
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maryland State AGFeb 28 · first

Vermont State AGFeb 28 · first · this page

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://ago.vermont.gov/document/2025-02-28-corvallis-school-district-509j-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 28, 2025
Raw hash: 56c29a4d0092b77a1885e1512a2e0bcaa0f9158e418a7c9a7dcad12e144f6d8d

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCorvallis School District 509J

Victim entityCorvallis School District 509J

Incidentdiscovered Jan 13, 2025

Stated responseNotified the Federal Bureau of Investigation

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov