HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDCriticalContained

Fairmont Federal Credit Union

bd_0a31c3a936612f17 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jan 23, 2024

Filed

Sep 11, 2025

To disclose

20 months

Affected · nationwide

187,03853 in this filing

Linked

8 filings

Confidence

66%

Full breach record for Fairmont Federal Credit Union →

Fairmont Federal Credit Union reported an external system breach occurring between September 30 and October 18, 2023. The incident was discovered on January 23, 2024, affecting approximately 187,038 individuals nationwide, including 53 Maine residents. The unauthorized party accessed files containing full names and government identifiers. The credit union engaged forensic investigators and offered 12-24 months of credit monitoring via Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jan 23, 2024 → Filed with AG Sep 11, 2025597d ✗ ME AG >90d20 months discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 115 days

discovery → filing · 20 months / 597 days

Sep 30, 2023

Begins

Jan 23, 2024

Discovered

Sep 11, 2025

Filed

vs. sector median

+77 wks slower

This filing is one of 8 about the same incident.View merged incident

A leak claim by black_basta about this victim predates this filing by 694 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteblack_bastabd_3065b6789ce4ea202023-10-18 · +694dVerified

Regulatory filings (6) · sorted by filing gap

Montana State AGbd_21b07e63bef16c8e2025-09-11Candidate
Nebraska State AGbd_2ad939cf43bf74292025-09-11Verified
Massachusetts State AGbd_548cd262e7012e8c2025-09-11Verified
California State AGbd_a6c06c435aa4a9612025-09-11Verified

Show 2 more filings ↓up to 7d gap

Texas State AGbd_296cd008c0de54c12025-09-12 · +1dVerified
New Hampshire State AGbd_761a3297a827ae362025-09-18 · +7dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins
Industry: Legal Services

Name: Fairmont Federal Credit Union
norm: fairmont federal credit union
Domain: fairmontfcu.com
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: Jan 23, 2024
Breach occurred: Sep 30, 2023 – Oct 18, 2023
Undetected for: 115 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 11, 2025
Affected individuals: 187,038state + nationwide
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Commenced a prompt and thorough forensic investigation
Working very closely with external cybersecurity professionals
Offering complimentary access to Experian IdentityWorks
Set up a dedicated and confidential toll-free response line
Changes made: Continually evaluate and modify practices and internal controls to enhance the security and privacy of your personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 months(597 days from discovery to filing)
Compliance flags: ME AG >90d · 597dME resident >180d · 597dLeak >180d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jan 23, 2024
→ Filed with AG: Sep 11, 2025
597d 90 days ME AG >90d
Maine
Discovered: Jan 23, 2024
→ Notified: Sep 11, 2025
597d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jan 23, 2024 → Filed with AG: Sep 11, 2025	597d	90 days	ME AG >90d
Maine	Discovered: Jan 23, 2024 → Notified: Sep 11, 2025	597d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Montana State AGSep 11 · first

Nebraska State AGSep 11 · first

Massachusetts State AGSep 11 · first

California State AGSep 11 · first

Maine State AGSep 11 · first · this page

Texas State AG+1d

New Hampshire State AG+7d

Pattern: first filing Sep 11 (MT), last Sep 18 (NH) — a 7-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/75c92a2c-3791-47c6-84f7-87b34fab952d.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 11, 2025
Raw hash: 127c770c3eff5c8007c39550d7d1f14c7975ef4f777ad9cfa6682331af948633

Linked disclosures

Ransomware claims (1)

Regulatory filings (6) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityFairmont Federal Credit Union

Incidentdiscovered Jan 23, 2024

Stated responseCommenced a prompt and thorough forensic investigation

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov