MalwareOtherRansomwareData ExfiltratedTargetedIdentity (basic)PIILowContained

Great Plains Beef Company

bd_b6234a2e2276b8b2 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 1, 2021

Filed

May 4, 2022

To disclose

31 weeks

Affected

12state residents only

Linked

4 filings

Confidence

67%

Full breach record for Great Plains Beef Company →

Great Plains Beef, LLC (and Lone Creek Cattle Company) notified Montana residents that on October 1, 2021, unauthorized access to computer systems resulted in encryption and potential exposure of personal information. Forensic experts were engaged, and affected individuals were offered 12 months of Experian IdentityWorks monitoring.

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Incident timeline

discovery → filing · 31 weeks / 215 days

Oct 1, 2021

Discovered

May 4, 2022

Filed

vs. sector median

+23 wks slower

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

New Hampshire State AGbd_6157707fbecdbe3c2022-05-04Verified
Indiana State AGbd_c18181b4acbf28592022-05-04Verified
Massachusetts State AGbd_78f5230ab5bdfb622022-05-05 · +1dVerified

Name: Great Plains Beef Company
norm: great plains beef

Name: Great Plains Beef Company
norm: great plains beef
Industry: Otherllm

Discovered: Oct 1, 2021
Materiality determined: —
Notification sent: —
Affected individuals: 12state-resident count only
Data types: Identity (basic)PII
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Engaged computer forensic experts
Offered a complimentary 12 month membership to Experian’s IdentityWorks
Changes made: Additional safeguards have been implemented to minimize the chance that an incident like this could occur in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(215 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

New Hampshire State AGMay 4 · first

Indiana State AGMay 4 · first

Montana State AGMay 4 · first · this page

Massachusetts State AG+1d

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/Great-Plains-Beef-Company-Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 4, 2022
Raw hash: a22bc5ebb0cdef379019425b2b15df5d895a4d99a9f82d0ed3e9cf7efb730665

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityGreat Plains Beef Company

Victim entityGreat Plains Beef Company

Incidentdiscovered Oct 1, 2021

Stated responseEngaged computer forensic experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov