HackingFinancial ServicesFinanceTargetedPIIIdentity (basic)LowContained

Neighbors Federal Credit Union

bd_1a8651d2ea2af669 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 20, 2024

Filed

May 7, 2025

To disclose

33 weeks

Affected

30state residents only

Linked

6 records

Confidence

66%

Full breach record for Neighbors Federal Credit Union →2 incidents on file

Neighbors Credit Union notified Montana residents of a data breach where an unauthorized third party accessed the network between September 20-21, 2024. Personal information including names and other data elements was acquired. The credit union engaged forensic investigators, notified law enforcement, and is offering one year of Experian IdentityWorks credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d33 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 33 weeks / 229 days

Sep 20, 2024

Begins

Sep 20, 2024

Discovered

May 7, 2025

Filed

vs. sector median

+24 wks slower

This filing is one of 6 records about the same incident.View merged incident

A leak claim by blacksuit about this victim was first seen 201 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteblacksuitbd_b986f5303bb257e32024-09-20 · +229dVerified by operator

Regulatory filings (4) · sorted by filing gap

Nebraska State AGbd_cb15ca60a6bb5b1f2025-05-07Verified by operator
Massachusetts State AGbd_a90856565d592df42025-05-08 · +1dVerified by operator
Illinois State AGbd_cece7d74bb402ee72025-05-01 · +6dVerified by operator
Texas State AGbd_08bfe73f097a64bc2025-10-14 · +160dVerified by operator

Name: Neighbors Federal Credit Union
norm: neighbors federal credit union
Domain: neighborscu.org

Name: Neighbors Federal Credit Union
norm: neighbors federal credit union
Domain: neighborscu.org
Industry: Financial Servicesllm

Discovered: Sep 20, 2024
Breach occurred: Sep 20, 2024 – Sep 21, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 30state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: notified law enforcement

During the incident: Began an internal investigation
Notified law enforcement
Worked to secure our systems
Engaged a forensic security firm to assist with our investigation
Changes made: Enhancing our technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 33 weeks(229 days from discovery to filing)
Compliance flags: Leak >180d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Illinois State AGMay 1 · first

Nebraska State AG+6d

Montana State AG+6d · this page

Massachusetts State AG+7d

Texas State AG+166d

Pattern: first filing May 1 (IL), last Oct 14 (TX) — a 166-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/2025/05/Consumer-notification-letter-2.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 7, 2025
Raw hash: 391e0d32148b7884ad02f42924000e49fa90ca30ee366c013df8567ae9f1423c

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityNeighbors Federal Credit Union

Victim entityNeighbors Federal Credit Union

Incidentdiscovered Sep 20, 2024

Stated responseBegan an internal investigation

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov