Social EngineeringFinancial ServicesFinancePhishingCustomer Data InvolvedIdentity (basic)Financial accountLowContained

Gain FCU

bd_1e7fc70fc5473319 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 20, 2025

Filed

Feb 4, 2026

To disclose

15 weeks

Affected

2state residents only

Confidence

68%

Full breach record for Gain FCU →

Gain FCU notified the New Hampshire Attorney General of a data security incident affecting two New Hampshire residents. The breach involved unauthorized access to a single user's email account, potentially exposing names, addresses, account numbers, and loan/financial information. The incident was discovered on October 20, 2025, and confirmed via investigation on January 22, 2026. Gain FCU engaged forensic investigators and legal counsel, and is notifying affected individuals.

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Incident timeline

discovery → filing · 15 weeks / 107 days

Oct 20, 2025

Discovered

Feb 4, 2026

Filed

vs. sector median

+7 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: Gain FCU
norm: gain fcu

Name: Gain FCU
norm: gain fcu
Industry: Financial Servicesllm

Discovered: Oct 20, 2025
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General
Initial access: phishing_link

During the incident: Conducted a comprehensive and diligent review of the data in the affected email account
Prepared notification letters and engaged a notification vendor to facilitate the notification process
Immediately launched an internal investigation and 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
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.

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://mm.nh.gov/files/uploads/doj/remote-docs/gain-fcu-20260204.pdf
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: 5f391db75779e2b4d7801e745fc9af2168397180c6cdf66e30e54be6fc71ba63

Reporting entityGain FCU

Victim entityGain FCU

Incidentdiscovered Oct 20, 2025

Stated responseConducted a comprehensive and diligent review of the data in the affected email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov