HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Gain Federal Credit Union

bd_ca9f5fe590c9106d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 20, 2025

Filed

Feb 4, 2026

To disclose

15 weeks

Affected

Not disclosed

Linked

4 filings

Confidence

64%

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

Gain Federal Credit Union experienced a data breach on October 20, 2025, when an unauthorized party gained access to a user's email account. The incident potentially exposed names, addresses, account numbers, financial/loan information, tax information, dates of birth, Social Security numbers, and potential driver's license numbers. Access was immediately interrupted upon discovery. The organization engaged third-party forensics, notified affected members, and offered identity theft protection services.

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Incident timeline

discovery → filing · 15 weeks / 107 days

Oct 20, 2025

Begins

Oct 20, 2025

Discovered

Feb 4, 2026

Filed

vs. sector median

+7 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Nebraska State AGbd_222c243edea4fb522026-02-04Verified
Indiana State AGbd_fde3c66c99ad683e2026-02-04Verified
Massachusetts State AGbd_05e319c765c5dc362026-02-05 · +1dVerified

Name: Gain Federal Credit Union
norm: gain federal credit union

Name: Gain Federal Credit Union
norm: gain federal credit union
Industry: Financial Servicesllm

Discovered: Oct 20, 2025
Breach occurred: Oct 20, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 4, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Reported the matter to appropriate authorities
Initial access: valid_credentials

During the incident: Immediately interrupted access to the compromised email account
Launched an internal investigation
Reported the matter to appropriate authorities
Retained independent third-party forensics firms to investigate the incident
Sought the advice of legal and cyber-security experts
Notified members whose information may have been affected
Offered identity theft protection services through IDX
Changes made: Took additional security measures to prevent an event like this from re-occurring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(107 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Nebraska State AGFeb 4 · first

Indiana State AGFeb 4 · first

California State AGFeb 4 · first · this page

Massachusetts State AG+1d

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://oag.ca.gov/ecrime/databreach/reports/sb24-618188
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 4, 2026
Raw hash: 1c1cfb751b358550a62185030bc4fc914867695c3318624589a249155318e9c5

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityGain Federal Credit Union

Victim entityGain Federal Credit Union

Incidentdiscovered Oct 20, 2025

Stated responseImmediately interrupted access to the compromised email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov