HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountMediumContained

US Employees O.C. Federal Credit Union

bd_36c8cb0d52a2161b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 6, 2024

Filed

Dec 13, 2024

To disclose

5 weeks

Affected

3state residents only

Linked

3 records

Confidence

67%

Full breach record for US Employees O.C. Federal Credit Union →2 incidents on file

US Employees O.C. Federal Credit Union notified Montana residents of a cybersecurity incident where an unauthorized party accessed systems and acquired files containing names, SSNs, driver's license numbers, and loan information on November 6, 2024. The credit union engaged forensic investigators and is offering one year of credit monitoring.

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Incident timeline

discovery → filing · 5 weeks / 37 days

Nov 6, 2024

Discovered

Dec 13, 2024

Filed

vs. sector median

3 wks faster

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_49878867389efbc32024-11-09 · +34dVerified by operator

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_4210066329bf22692024-12-13Verified by operator

Name: US Employees O.C. Federal Credit Union
norm: us employees oc federal credit union
Domain: usecreditunion.org

Name: US Employees O.C. Federal Credit Union
norm: us employees oc federal credit union
Domain: usecreditunion.org
Industry: Financial Servicesllm

Discovered: Nov 6, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Engaged a leading, third-party forensic investigation firm to confirm the security of our systems and to further investigate
Offering a complimentary one-year membership of Experian IdentityWorksSM Credit 3B
Changes made: Evaluating our technical security measures for ways to prevent a similar incident in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(37 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 13 · first

Montana State AGDec 13 · 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/2025/03/Consumer-notification-letter-72.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 13, 2024
Raw hash: c6ce1e367bccecc7ff8b0a9ae080e78d93d73d7e7b5263b7313826fb9a58d9d7

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityUS Employees O.C. Federal Credit Union

Victim entityUS Employees O.C. Federal Credit Union

Incidentdiscovered Nov 6, 2024

Stated responseEngaged a leading, third-party forensic investigation firm to confirm the security of our systems and to further investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov