MalwareFinancial ServicesFinanceRansomwareData EncryptedIdentity (basic)Government IDMediumContained

Interstate Equities Corporation

bd_c87b747cee907b5b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 24, 2021

Filed

Nov 5, 2021

To disclose

6 weeks

Affected

2state residents only

Linked

2 filings

Confidence

66%

Full breach record for Interstate Equities Corporation →

Interstate Equities Corporation notified Montana residents of a September 24, 2021 malware incident that encrypted systems and exposed names and SSNs. The company secured the network, notified law enforcement, engaged cybersecurity professionals, and offered 12 months of IDX identity protection services.

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Incident timeline

discovery → filing · 6 weeks / 42 days

Sep 24, 2021

Begins

Sep 24, 2021

Discovered

Nov 5, 2021

Filed

vs. sector median

2 wks faster

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

Massachusetts State AGbd_0b4e763a7dd906c32021-11-05Verified

Name: Interstate Equities Corporation
norm: interstate equities

Name: Interstate Equities Corporation
norm: interstate equities
Industry: Financial Servicesllm

Discovered: Sep 24, 2021
Breach occurred: Sep 24, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 5, 2021
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement

During the incident: Took immediate steps to secure the network
Notified law enforcement
Launched an investigation with the assistance of cybersecurity professionals
Offering complimentary membership in identity theft protection services through IDX
Changes made: Restoring impacted systems
Changing network user passwords
Implementing additional security safeguards and controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(42 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 ↗

Massachusetts State AGNov 5 · first

Montana State AGNov 5 · 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/Consumer-Notification-Letter-62.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 5, 2021
Raw hash: ab2997fe9d35b3275cf0c6c07fecf2169844e0c79c81b582f39ddad35437c2e8

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityInterstate Equities Corporation

Victim entityInterstate Equities Corporation

Incidentdiscovered Sep 24, 2021

Stated responseTook immediate steps to secure the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov