HackingEducationEducationStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Coffeyville Unified School District 445

bd_4190fc1138c1f331 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 2, 2020

Filed

Feb 24, 2021

To disclose

29 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Coffeyville Unified School District 445 →

Coffeyville Unified School District 445 notified affected individuals of unauthorized access to file servers between July 24 and August 2, 2020. The incident exposed names and Social Security numbers. The District engaged a cybersecurity firm, notified law enforcement, and provided one year of Kroll identity monitoring services.

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Incident timeline

undetected · 9 days

discovery → filing · 29 weeks / 206 days

Jul 24, 2020

Begins

Aug 2, 2020

Discovered

Feb 24, 2021

Filed

vs. sector median

+19 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

Indiana State AGbd_5857914c26a46b1f2021-02-24Verified

Name: Coffeyville Unified School District 445
norm: coffeyville unified school district 445

Name: Coffeyville Unified School District 445
norm: coffeyville unified school district 445
Industry: Educationllm

Discovered: Aug 2, 2020
Breach occurred: Jul 24, 2020 – Aug 2, 2020
Undetected for: 9 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement
Initial access: valid_credentials

During the incident: Took steps to secure our digital environment
Notified law enforcement
Engaged a cybersecurity firm
Conducted a thorough investigation
Arranged for complimentary one-year membership to identity monitoring services through Kroll
Changes made: Undertaking a review of how our information is stored
Taking steps to further enhance our existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 weeks(206 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 ↗

Indiana State AGFeb 24 · first

Montana State AGFeb 24 · 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/coffSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 24, 2021
Raw hash: 45a941edb3c51667742548630decf6e890a700610eb639f3d75656a0c9b62b20

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCoffeyville Unified School District 445

Victim entityCoffeyville Unified School District 445

Incidentdiscovered Aug 2, 2020

Stated responseTook steps to secure our digital environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov