HackingEducationEducationStolen CredentialsCapture Stored DataSupply Chain (3P Vendor)Customer Data InvolvedData ExfiltratedIdentity (basic)PIILowContained

Carruth Compliance Consulting

bd_46df0fffa82b6eff · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 21, 2024

Filed

Mar 13, 2025

To disclose

12 weeks

Affected

9state residents only

Linked

2 filings

Confidence

65%

Jefferson County School District 509J notified Montana residents of a data breach affecting staff information. The incident occurred at third-party vendor Carruth Compliance Consulting (CCC) between Dec 19-26, 2024. Unauthorized access and file copying occurred on CCC's systems. Affected data included names. CCC engaged specialists for investigation and offered complimentary identity protection services via IDX.

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Incident timeline

undetected · 2 days

discovery → filing · 12 weeks / 82 days

Dec 19, 2024

Begins

Dec 21, 2024

Discovered

Mar 13, 2025

Filed

vs. sector median

+3 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Nebraska State AGbd_6f001d95055828502025-03-13Verified

Name: Jefferson County School District 509J
norm: jefferson county school district 509j

Name: Carruth Compliance Consulting
norm: carruth compliance consulting
Industry: Educationllm

Discovered: Dec 21, 2024
Breach occurred: Dec 19, 2024 – Dec 26, 2024
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 13, 2025
Affected individuals: 9state-resident count only
Data types: Identity (basic)PII
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: CCC provided notice of this event to Jefferson on January 13, 2025
Third party: via Carruth Compliance Consulting
Initial access: valid_credentials

During the incident: CCC immediately began working with third-party specialists to investigate the activity
CCC is taking steps to implement measures to enhance security
CCC is offering complimentary identity protection services through IDX
Changes made: CCC is taking steps to implement measures to enhance security and minimize the risk of a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Nebraska State AGMar 13 · first

Montana State AGMar 13 · 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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-243.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 13, 2025
Raw hash: 1392bcc37f180b2a790c3f38adaa7f7342bb768a23f22ddd320aa9629cb2664a

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityJefferson County School District 509J

Victim entityCarruth Compliance Consulting

Incidentdiscovered Dec 21, 2024

Stated responseCCC immediately began working with third-party specialists to investigate the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov