Social EngineeringTransportation & LogisticsTransportationPhishingStolen CredentialsCustomer Data InvolvedTargetedPIIIdentity (basic)LowContained

Pioneer Railcorp

bd_2f192f8749c70865 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 2, 2019

Filed

Jun 9, 2020

To disclose

27 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Pioneer Railcorp →

Pioneer Railcorp notified Montana residents of a December 2019 email account compromise likely caused by phishing. Unauthorized access to employee email accounts exposed personal information. The company engaged forensic investigators, notified the FBI, and offered 12 months of credit monitoring via ID Experts.

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Incident timeline

discovery → filing · 27 weeks / 190 days

Dec 2, 2019

Discovered

Jun 9, 2020

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_43c79b0cb723eed32020-06-09Verified

Name: Pioneer Railcorp
norm: pioneer railcorp

Name: Pioneer Railcorp
norm: pioneer railcorp
Industry: Transportation & Logisticsllm

Discovered: Dec 2, 2019
Materiality determined: —
Notification sent: Jun 9, 2020
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified the FBIReporting the incident to the three major consumer reporting agencies
Initial access: phishing_link

During the incident: Engaged an independent forensics firm to determine what happened
Engaged a document review vendor to search the contents of the impacted email accounts
Notified the FBI
Providing complimentary MyIDCare identity theft protection services through ID Experts
Working with leading cybersecurity experts to enhance the security of our digital environment
Reporting the incident to the three major consumer reporting agencies
Changes made: Enhanced the security of our digital environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(190 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGJun 9 · first

Montana State AGJun 9 · first · this page

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/General-Notice-106.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 9, 2020
Raw hash: 5d8d778ba4fb4c09f95fb08d96f21ca8e935a05108654c5201cc734b9858a13e

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityPioneer Railcorp

Victim entityPioneer Railcorp

Incidentdiscovered Dec 2, 2019

Stated responseEngaged an independent forensics firm to determine what happened

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov