Social EngineeringOtherPhishingStolen CredentialsData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Teton Heritage Builders

bd_0fc430c779c6a244 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 15, 2020

Filed

Apr 5, 2021

To disclose

25 weeks

Affected

54state residents only

Confidence

66%

Full breach record for Teton Heritage Builders →

Teton Heritage Builders notified Montana residents of a data security incident discovered on October 15, 2020, involving unauthorized access to employee email accounts via phishing. Personal information, including names and variable data, was potentially accessed. The company engaged forensic investigators, notified the FBI, and offered 12 months of credit monitoring.

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Incident timeline

discovery → filing · 25 weeks / 172 days

Oct 15, 2020

Discovered

Apr 5, 2021

Filed

vs. sector median

+16 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed54 affectedView incident

Name: Teton Heritage Builders
norm: teton heritage builders

Name: Teton Heritage Builders
norm: teton heritage builders
Industry: Otherllm

Discovered: Oct 15, 2020
Materiality determined: —
Notification sent: Apr 5, 2021
Affected individuals: 54state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of Investigation
Initial access: phishing_link

During the incident: Engaged a leading cybersecurity firm to assist with the investigation
Notified the Federal Bureau of Investigation
Implemented additional security features for our email system
Offering complimentary credit monitoring and identity protection services for 12 months through IDX
Changes made: Implemented additional security features for our email system to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(172 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/Teton-Notif.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 5, 2021
Raw hash: 865457cf849be4963a960b8e11a8004ddcf93cbc3226b9ee15d076b6e916920a

Reporting entityTeton Heritage Builders

Victim entityTeton Heritage Builders

Incidentdiscovered Oct 15, 2020

Stated responseEngaged a leading cybersecurity firm to assist with the investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov