Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Big Sky Land Management

bd_854c9a7643ce611b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 3, 2022

Filed

Nov 7, 2022

To disclose

5 weeks

Affected

5state residents only

Confidence

65%

Full breach record for Big Sky Land Management →

Big Sky Land Management notified individuals of a data security incident involving unauthorized access to an employee email account via phishing. The incident potentially exposed names, driver's license numbers, and Social Security Numbers. The company engaged forensic specialists, reset passwords, implemented MFA, and reported to federal law enforcement. Affected individuals were offered one year of credit monitoring.

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Incident timeline

discovery → filing · 5 weeks / 35 days

Oct 3, 2022

Discovered

Nov 7, 2022

Filed

vs. sector median

13 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed5 affectedView incident

Name: Big Sky Land Management
norm: big sky land management

Name: Big Sky Land Management
norm: big sky land management
Industry: Professional Servicesllm

Discovered: Oct 3, 2022
Materiality determined: —
Notification sent: Nov 8, 2022
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: reported the incident to federal law enforcement
Initial access: phishing_link

During the incident: Partnering with computer forensic specialists
Changed the passwords to all user accounts
Implemented multi-factor authentication
Reported the incident to federal law enforcement
Changes made: Implemented multi-factor authentication
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 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-696.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 7, 2022
Raw hash: e75e22a1a2b1b0fbd59771b84516970eaa89ea3c319e57197c51d24098ea245e

Reporting entityBig Sky Land Management

Victim entityBig Sky Land Management

Incidentdiscovered Oct 3, 2022

Stated responsePartnering with computer forensic specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov