MalwareManufacturingManufacturingRansomwareData EncryptedIdentity (basic)LowContained

Duke Manufacturing Co.

bd_6bf685473d9dc3ae · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 10, 2021

Filed

Oct 31, 2021

To disclose

12 weeks

Affected

1state residents only

Confidence

65%

Full breach record for Duke Manufacturing Co. →2 incidents on file

Duke Manufacturing Co. notified Montana residents of a malware attack discovered on August 10, 2021, that encrypted systems. The incident potentially exposed beneficiary/dependent information (name, address) of current or former employees. Duke engaged forensic specialists, secured systems, restored from backups, and reported to federal law enforcement. Affected individuals were offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 12 weeks / 82 days

Aug 10, 2021

Discovered

Oct 31, 2021

Filed

vs. sector median

+1 wks slower

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

Name: Duke Manufacturing Co.
norm: duke manufacturing

Name: Duke Manufacturing Co.
norm: duke manufacturing
Industry: Manufacturingllm

Discovered: Aug 10, 2021
Materiality determined: —
Notification sent: Nov 1, 2021
Affected individuals: 1state-resident count only
Data types: Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Reported this incident to federal law enforcement

During the incident: Secured the systems
Restored access to the information from available backups
Investigated what happened and whether this resulted in any unauthorized access to, or theft of, information
Worked with third-party forensic specialists to perform a comprehensive review
Reported this incident to federal law enforcement
Changes made: Reviewing its security policies and procedures to reduce the risk of similar future events
Offering complimentary credit monitoring and identity restoration services through IDX for 24 months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 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-48.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 31, 2021
Raw hash: 9379fb9952713e1db254d08d97cdde79f0fa731a927b42f509e946638355389e

Reporting entityDuke Manufacturing Co.

Victim entityDuke Manufacturing Co.

Incidentdiscovered Aug 10, 2021

Stated responseSecured the systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov