MalwareEducationEducationRansomwareData ExfiltratedTargetedEducationFinancial accountIdentity (basic)Government IDPHIHealth (basic)HighContained

Cornish College of the Arts

bd_020708122f53f393 · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 11, 2021

Filed

May 6, 2022

To disclose

47 weeks

Affected

72,139state residents only

Linked

8 filings

Confidence

70%

Full breach record for Cornish College of the Arts →

Cornish College of the Arts reported a ransomware incident affecting 72,139 Washington residents. Unauthorized access occurred June 6-10, 2021, discovered June 11, 2021. Files containing names were potentially removed. The college engaged outside cybersecurity professionals, contained the threat, and offered one year of Experian IdentityWorks credit monitoring.

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Washington clock✗ WA AG >90d47 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 · 47 weeks / 329 days

Jun 6, 2021

Begins

Jun 11, 2021

Discovered

May 6, 2022

Filed

This filing is one of 8 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Montana State AGbd_74673effc56edb912022-05-06Candidate
California State AGbd_7fb26e03c9c070182022-05-06Verified
Massachusetts State AGbd_a824b886bc07c90b2022-05-06Verified
Maine State AGbd_fb30b45e0dc7f9612022-05-06Verified

Show 3 more filings ↓up to 365d gap

New Hampshire State AGbd_9b3f4f6dd05898532022-05-12 · +6dVerified
Oregon State AGbd_e2d9c81ab16bf4c92022-05-23 · +17dVerified
Indiana State AGbd_15698c296d0dfd722021-05-06 · +365dVerified

Name: Cornish College of the Arts
norm: cornish college of the arts

Name: Cornish College of the Arts
norm: cornish college of the arts
Industry: Educationllm

Discovered: Jun 11, 2021
Breach occurred: Jun 6, 2021 – Jun 10, 2021
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 6, 2022
Affected individuals: 72,139state-resident count only
Data types: Identity (basic)
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthStudent ID numberPassport numberHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found after the fact
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Contained and secured the threat
Commenced a prompt and thorough investigation
Launched an investigation in consultation with outside cybersecurity professionals
Offering a complimentary one-year membership of Experian IdentityWorks Credit 3B
Changes made: Continually evaluate and modify practices and internal controls to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 47 weeks(329 days from discovery to filing)
Compliance flags: WA AG >90d
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 · 8 filings · 8 states

View merged incident ↗

Indiana State AGMay 6 · first

Montana State AG+365d

California State AG+365d

Massachusetts State AG+365d

Maine State AG+365d

Washington State AG+365d · this page

New Hampshire State AG+371d

Oregon State AG+382d

Pattern: first filing May 6 (IN), last May 23 (OR) — a 382-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA9546.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 6, 2022
Raw hash: 294d239722806135f979dc5ce202cade0801608a64596e2abc0c11efea8ee0e0

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityCornish College of the Arts

Victim entityCornish College of the Arts

Incidentdiscovered Jun 11, 2021

Stated responseContained and secured the threat

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com