MalwareGovernmentGovernmentRansomwareData ExfiltratedData EncryptedRansom DemandedIdentity (basic)Government IDFinancial accountMediumContained

Clay County

bd_b6c02f20aa76bb95 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 27, 2023

Filed

Dec 22, 2023

To disclose

8 weeks

Affected

210state residents only

Confidence

64%

Clay County Social Services (MN) notified individuals of a ransomware attack on its CaseWorks network (Oct 23-26, 2023). Unauthorized access led to data exfiltration including names, SSNs, and financial info. The county engaged forensic investigators, notified law enforcement and HHS, and implemented MFA and enhanced security controls.

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Incident timeline

undetected · 4 days

discovery → filing · 8 weeks / 56 days

Oct 23, 2023

Begins

Oct 27, 2023

Discovered

Dec 22, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed210 affectedView incident

Name: Clay County Social Services
norm: clay county social services

Name: Clay County
norm: clay county
Industry: Governmentllm

Discovered: Oct 27, 2023
Breach occurred: Oct 23, 2023 – Oct 26, 2023
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 22, 2023
Affected individuals: 210state-resident count only
Data types: Identity (basic)Government IDFinancial account
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 federal law enforcementnotified the Minnesota Department of Human Servicesproviding notice of this incident to the United States Department of Health and Human Services and all appropriate state regulators

During the incident: Began working with our local information technology partner to investigate
Worked with a nationally recognized digital forensics firm to assist with the investigation
Notified federal law enforcement and the Minnesota Department of Human Services
Changes made: Implemented multi-factor authentication for any remote access to the CaseWorks application
Updated procedures related to external access by any vendors
Deployed security tools to enhance detection and accelerate response to cyber incidents
Enhancing technical security related to the CaseWorks application
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(56 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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-973.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 22, 2023
Raw hash: 8b2bc8b084f131e0020c9bf96f126ed59e70cba17319c089553846a2951e736b

Reporting entityClay County Social Services

Victim entityClay County

Incidentdiscovered Oct 27, 2023

Stated responseBegan working with our local information technology partner to investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov