MalwareGovernmentGovernmentRansomwareCapture Stored DataData ExfiltratedData EncryptedTargetedIdentity (basic)LowContained

Langlade County Wisconsin

bd_54415a7715699ac6 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 20, 2023

Filed

Nov 15, 2023

To disclose

21 weeks

Affected

1state residents only

Confidence

65%

Full breach record for Langlade County Wisconsin →

Langlade County notified Montana residents of a ransomware incident where an unknown third party encrypted systems and exfiltrated files containing names between June 20 and July 11, 2023. The incident was discovered on June 20, 2023. Langlade County contained the incident, rebuilt systems from backups, engaged forensic investigators, and offered one year of Experian IdentityWorks credit monitoring.

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Incident timeline

discovery → filing · 21 weeks / 148 days

Jun 20, 2023

Begins

Jun 20, 2023

Discovered

Nov 15, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Langlade County Wisconsin
norm: langlade county wisconsin

Name: Langlade County Wisconsin
norm: langlade county wisconsin
Industry: Governmentllm

Discovered: Jun 20, 2023
Breach occurred: Jun 20, 2023 – Jul 11, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 15, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Promptly contained the incident and rebuilt our systems from backups
Notified law enforcement
Worked with a forensic security firm to investigate and confirm the security of our computer systems
Offering a complimentary one-year membership of Experian IdentityWorks Credit 3B
Changes made: Enhancing our technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(148 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-844.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 15, 2023
Raw hash: 741b4ec2a125533901a3c5c133eb18a2c5168063c657cdd88065fe8bb22622c9

Reporting entityLanglade County Wisconsin

Victim entityLanglade County Wisconsin

Incidentdiscovered Jun 20, 2023

Stated responsePromptly contained the incident and rebuilt our systems from backups

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov