MalwareGovernmentGovernmentRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedFinancial accountHealth (basic)Identity (basic)Government IDPHIHighContained

City of Ellensburg, Washington

bd_0fcafd8dcf23bfb4 · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 21, 2020

Filed

Feb 10, 2021

To disclose

7 weeks

Affected

8,523state residents only

Linked

4 filings

Confidence

70%

Full breach record for City of Ellensburg, Washington →

City of Ellensburg, WA, notified 8,523 residents of a ransomware incident discovered on Dec 21, 2020. Files containing PII (SSN, DL, bank info, health info) were exfiltrated. Notified Feb 10, 2021. FBI engaged. Forensics retained. Identity theft protection offered.

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Washington clock⏱ WA AG >30d7 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

discovery → filing · 7 weeks / 51 days

Dec 21, 2020

Discovered

Feb 10, 2021

Filed

vs. sector median

4 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_3fc4d99623b6ed362021-02-10Verified
Montana State AGbd_4331c0cb94eff4862021-02-10Verified
Massachusetts State AGbd_586fdce2fc92419c2021-02-10Verified

Name: City of Ellensburg, Washington
norm: city of ellensburg washington

Name: City of Ellensburg, Washington
norm: city of ellensburg washington
Industry: Governmentllm

Discovered: Dec 21, 2020
Materiality determined: —
Notification sent: Feb 10, 2021
Affected individuals: 8,523state-resident count only
Data types: Financial accountHealth (basic)Identity (basic)Government IDPHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthPassport numberHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle Unknowndexposure Unknownd
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
Regulator citations: Notified Washington Office of the Attorney GeneralReported the incident to the FBI

During the incident: Took immediate steps to secure its systems
Launched an internal investigation
Engaged an independent digital forensics firm
Retained legal counsel
Reported the incident to the FBI
Notified 8,523 Washington residents
Offered complimentary identity theft protection services
Changes made: Implemented measures to enhance the security of its environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(51 days from discovery to filing)
Compliance flags: WA AG >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 · 4 filings · 4 states

View merged incident ↗

Indiana State AGFeb 10 · first

Montana State AGFeb 10 · first

Massachusetts State AGFeb 10 · first

Washington State AGFeb 10 · 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/BreachM10314.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 10, 2021
Raw hash: d28f96b1d2e7f43ed304dc5308ecc36aba0d08828532fde16f1b9eb9b2dece6d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCity of Ellensburg, Washington

Victim entityCity of Ellensburg, Washington

Incidentdiscovered Dec 21, 2020

Stated responseTook immediate steps to secure its systems

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com