MalwareEducationEducationRansomwareData ExfiltratedRansom DemandedTargetedFinancial accountHealth (basic)Identity (basic)Government IDPHIPIIHighActive

Clover Park School District

bd_2291a38c68be161b · schema v1 · pii pii-v1

Severity

High

Discovered

May 17, 2021

Filed

Jul 12, 2021

To disclose

8 weeks

Affected

5,872state residents only

Linked

7 filings

Confidence

71%

Full breach record for Clover Park School District →2 incidents on file

Clover Park School District (CPSD) reported a ransomware incident in Washington. Unauthorized access occurred May 12-26, 2021. CPSD discovered suspicious activity on May 17, 2021. The breach affected up to 5,872 individuals, exposing PII, SSNs, driver's licenses, financial account info, and medical data. CPSD is cooperating with federal law enforcement and providing 12 months of credit monitoring.

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Washington clock⏱ WA AG >30d8 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 5 days

discovery → filing · 8 weeks / 56 days

May 12, 2021

Begins

May 17, 2021

Discovered

Jul 12, 2021

Filed

vs. sector median

2 wks faster

This filing is one of 7 about the same incident.View merged incident

A leak claim by grief about this victim predates this filing by 47 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitegriefbd_b303bc80ef0b7c732021-05-26 · +47dVerified by operator

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_19ef18cc421585992021-07-12Verified by operator
Indiana State AGbd_1b88bb529743635b2021-07-12Verified
Maine State AGbd_cac688e35ccd9ae82021-07-12Verified
Montana State AGbd_fc31907b6e6b28fc2021-07-12Verified

Show 1 more filing ↓up to 4d gap

New Hampshire State AGbd_69338cea1e398c622021-07-16 · +4dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Clover Park School District
norm: clover park school district
Domain: cloverpark.k12.wa.us
Industry: Educationllm

Discovered: May 17, 2021
Breach occurred: May 12, 2021 – May 26, 2021
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 12, 2021
Affected individuals: 5,872state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PII
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoing
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Washington Office of the Attorney General
Initial access: valid_credentials

During the incident: Cooperating with an investigation launched by federal law enforcement
Providing access to credit monitoring services for 12 months through IDX
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Implementing additional safeguards and training to its employees
Changes made: Reviewing existing policies and procedures relating to data protection and security
Investigating additional security measures to mitigate any risk associated with this incident and to better prevent future incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(56 days from discovery to filing)
Compliance flags: WA AG >30dLeak >30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Massachusetts State AGJul 12 · first

Indiana State AGJul 12 · first

Maine State AGJul 12 · first

Montana State AGJul 12 · first

Washington State AGJul 12 · first · this page

New Hampshire State AG+4d

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/BreachM10691.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 12, 2021
Raw hash: 1baa0c55a423d9840f9ad52cee56c78591c2a6b814f014247a8974de7628d513

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityClover Park School District

Incidentdiscovered May 17, 2021

Stated responseCooperating with an investigation launched by federal law enforcement

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com