MalwareEducationEducationRansomwareCapture Stored DataData ExfiltratedData EncryptedRansom DemandedTargetedIdentity (basic)Government IDMediumContained

Shelley School District

bd_6d83b2b9c1f5dbf4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 6, 2021

Filed

Mar 24, 2022

To disclose

15 weeks

Affected

3state residents only

Linked

3 filings

Confidence

65%

Full breach record for Shelley School District →

Shelley School District notified affected individuals of a ransomware attack on December 6, 2021, which resulted in data exfiltration before encryption. Personal information including names, DOBs, addresses, and SSNs/Driver's Licenses was compromised. The District engaged forensic investigators, notified the FBI, and offered one year of Experian credit monitoring.

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Incident timeline

discovery → filing · 15 weeks / 108 days

Dec 6, 2021

Begins

Dec 6, 2021

Discovered

Mar 24, 2022

Filed

vs. sector median

+8 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

Idaho State AGbd_d530cffe515bbf522022-03-23 · +1dVerified
Idaho State AGbd_3165929c1e2763c12022-02-23 · +29dCandidate

Name: Shelley School District
norm: shelley school district

Name: Shelley School District
norm: shelley school district
Industry: Educationllm

Discovered: Dec 6, 2021
Breach occurred: Dec 6, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 24, 2022
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of InvestigationProviding regular updates about this incident to the Idaho Chief Information Security OfficerNotified the Idaho State Department of EducationNotified the Idaho Attorney General’s office

During the incident: Launched an investigation
Hired legal counsel with an expertise in cybersecurity
Hired a nationally-recognized cyber security and digital forensics firm
Worked closely with its experts to contain the attack
Securely restore operations
Notified the Federal Bureau of Investigation
Providing regular updates about this incident to the Idaho Chief Information Security Officer
Notified the Idaho State Department of Education and the Idaho Attorney General’s office
Offering complimentary, one-year membership with Experian
Changes made: Deploying end-point detection and response tools to enhance our network monitoring
Deleting or archiving outdated information
Adding Multi-Factor Authentication
Strengthening backups and ability to recover data from backups
Closely monitoring and restricting outside access to our computer network
Increasing password complexity requirements
Strengthening our email filtering to help block dangerous emails
Updating our incident response procedures to more quickly and effectively respond to incidents
Enhancing our cyber training and providing regular communications in order to increase cyber awareness
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(108 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 · 2 states

View merged incident ↗

Idaho State AGFeb 23 · first

Idaho State AG+28d

Montana State AG+29d · this page

Pattern: first filing Feb 23 (ID), last Mar 24 (MT) — a 29-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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-278.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 24, 2022
Raw hash: 43238a577fe24423a18e1c2b9a34c4f44b46b64dbc7ab1e4e1dde56fde4dcfee

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityShelley School District

Victim entityShelley School District

Incidentdiscovered Dec 6, 2021

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov