HackingEducationEducationStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDHealth (basic)BiometricMediumContained

Chief Leschi Schools

bd_6e4f817bcded8cf7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 18, 2024

Filed

Dec 26, 2024

To disclose

5 weeks

Affected · nationwide

693655 in this filing

Linked

2 filings

Confidence

66%

Full breach record for Chief Leschi Schools →

Chief Leschi Schools, a Native American tribal school in Washington, disclosed a data event discovered on November 18, 2024, involving unauthorized access to network data. The incident potentially exposed names, SSNs, driver's license numbers, health insurance info, and biometric data for 693 individuals (655 WA residents). CLS engaged forensic specialists, retained counsel, and offered 24 months of credit monitoring via CyberScout.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d5 weeks discovery → filing

Incident timeline

discovery → filing · 5 weeks / 38 days

Nov 18, 2024

Begins

Nov 18, 2024

Discovered

Dec 26, 2024

Filed

vs. sector median

5 wks faster

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

Massachusetts State AGbd_715bfed1d360cbc82024-12-26Candidate

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

Name: Chief Leschi Schools
norm: chief leschi schools
Industry: Educationllm

Discovered: Nov 18, 2024
Breach occurred: Nov 18, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 26, 2024
Affected individuals: 693state + nationwide
Data types: Identity (basic)Government IDHealth (basic)Biometric
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Washington Attorney General Bob Ferguson
Initial access: valid_credentials

During the incident: Engaged a specialized cybersecurity firm to conduct a forensic investigation
Retained legal counsel
Notified affected individuals
Offered twenty-four (24) months of complimentary credit monitoring and identity theft restoration services through CyberScout
Changes made: Provided guidance on how to better protect against identity theft and fraud
Provided information on how to place a fraud alert and security freeze on one’s credit file
Provided contact details for the national consumer reporting agencies
Provided information on how to obtain a free credit report
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(38 days from discovery to filing)
Compliance flags: WA AG >30d
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 ↗

Massachusetts State AGDec 26 · first

Washington State AGDec 26 · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA31790.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 26, 2024
Raw hash: 539b4a89407d86a93c2c5237187325fb3b19dc06b72067a84191bcc123b718c7

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityChief Leschi Schools

Incidentdiscovered Nov 18, 2024

Stated responseEngaged a specialized cybersecurity firm to conduct a forensic investigation

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com