HackingFinancial ServicesFinanceStolen CredentialsTargetedIdentity (basic)Government IDFinancial accountMediumContained

Home State Bank

bd_aa6ae0f332a5ae0a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 18, 2021

Filed

Dec 8, 2021

To disclose

12 weeks

Affected

17state residents only

Linked

3 filings

Confidence

66%

Full breach record for Home State Bank →

Home State Bank notified customers of unauthorized access to network data between Sept 17-18, 2021. Impacted data included names, SSNs, and account numbers. The bank engaged forensic specialists and offered two years of Kroll identity monitoring.

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Incident timeline

undetected · 1 days

discovery → filing · 12 weeks / 81 days

Sep 17, 2021

Begins

Sep 18, 2021

Discovered

Dec 8, 2021

Filed

vs. sector median

+3 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteblackmatterbd_3e4b7ff809e247fc2021-11-04 · +34dVerified by operator

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_8eaa2da7552c73b82021-12-08Verified

Name: Home State Bank
norm: home state bank

Name: Home State Bank
norm: home state bank
Industry: Financial Servicesllm

Discovered: Sep 18, 2021
Breach occurred: Sep 17, 2021 – Sep 18, 2021
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 17state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Initiated an investigation
Conducted with the assistance of third-party forensic specialists
Conducted a comprehensive review of the impacted data
Moved quickly to secure the network
Arranged to have Kroll provide identity monitoring services
Changes made: Secured the network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(81 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 AGDec 8 · first

Montana State AGDec 8 · 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-129.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 8, 2021
Raw hash: 787a54012047eca5e53183d4cab5eff25271333bc2cc7d845073442b7cbcb938

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityHome State Bank

Victim entityHome State Bank

Incidentdiscovered Sep 18, 2021

Stated responseInitiated an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov