Gain Federal Credit Union Data Breach Exposes Sensitive Member Information
Gain Federal Credit Union, a Burbank, California-based financial institution, is under investigation following a data breach that compromised the personal and financial information of its members. The incident, discovered on October 20, 2025, involved unauthorized access to a user’s email account, prompting an internal review and notification to authorities.
Key Details:
- Who: Gain Federal Credit Union, a member-owned credit union founded in 1940, serving customers with banking services including loans and financial education programs.
- What: An unauthorized party accessed a member’s email account, exposing sensitive data such as names, addresses, account numbers, financial/loan information, driver’s licenses, and Social Security numbers.
- When: The breach was detected in October 2025, with official reports filed to the California and New Hampshire attorney general offices and the Massachusetts OCABR in February 2026.
- Where: The credit union is headquartered at 1800 W. Magnolia Blvd., Burbank, CA, with approximately 44 employees.
- Impact: At least 13 individuals (11 in Massachusetts and 2 in New Hampshire) have been confirmed as affected, though the full scope remains under investigation.
Gain Federal Credit Union has since secured the compromised account and is offering support through IDX (888-201-2057) for affected members. Legal firms are also exploring potential compensation claims for those impacted.
The breach underscores the ongoing risks to financial institutions and the need for heightened security measures to protect sensitive customer data.
Source: https://www.claimdepot.com/investigations/gain-federal-credit-union-data-breach-2026
Gain Federal Credit Union cybersecurity rating report: https://www.rankiteo.com/company/gain-federal-credit-union
"id": "GAI1770409494",
"linkid": "gain-federal-credit-union",
"type": "Breach",
"date": "10/2025",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"{'affected_entities': [{'customers_affected': 'At least 13 individuals (11 in '
'Massachusetts, 2 in New '
'Hampshire)',
'industry': 'Banking/Financial Services',
'location': '1800 W. Magnolia Blvd., Burbank, CA, USA',
'name': 'Gain Federal Credit Union',
'size': 'Approximately 44 employees',
'type': 'Financial Institution (Credit Union)'}],
'attack_vector': 'Unauthorized email account access',
'customer_advisories': 'Affected members advised to contact IDX '
'(888-201-2057) for support',
'data_breach': {'number_of_records_exposed': 'At least 13 confirmed',
'personally_identifiable_information': 'Yes',
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Names',
'Addresses',
'Account numbers',
'Financial/loan information',
'Driver’s licenses',
'Social Security numbers']},
'date_detected': '2025-10-20',
'date_publicly_disclosed': '2026-02',
'description': 'Gain Federal Credit Union, a Burbank, California-based '
'financial institution, is under investigation following a '
'data breach that compromised the personal and financial '
'information of its members. The incident involved '
'unauthorized access to a user’s email account, exposing '
'sensitive data such as names, addresses, account numbers, '
'financial/loan information, driver’s licenses, and Social '
'Security numbers.',
'impact': {'data_compromised': 'Personal and financial information (names, '
'addresses, account numbers, financial/loan '
'information, driver’s licenses, Social '
'Security numbers)',
'identity_theft_risk': 'High',
'payment_information_risk': 'High',
'systems_affected': 'Email account'},
'initial_access_broker': {'entry_point': 'Email account'},
'investigation_status': 'Under investigation',
'lessons_learned': 'Ongoing risks to financial institutions highlight the '
'need for heightened security measures to protect '
'sensitive customer data.',
'references': [{'source': 'California Attorney General'},
{'source': 'New Hampshire Attorney General'},
{'source': 'Massachusetts OCABR'}],
'regulatory_compliance': {'legal_actions': 'Potential compensation claims '
'being explored',
'regulatory_notifications': 'Yes (California and '
'New Hampshire attorney '
'general offices, '
'Massachusetts OCABR)'},
'response': {'communication_strategy': 'Notifications to affected members and '
'regulatory bodies',
'containment_measures': 'Secured the compromised email account',
'law_enforcement_notified': 'Yes (California and New Hampshire '
'attorney general offices, '
'Massachusetts OCABR)',
'third_party_assistance': 'IDX (identity protection services)'},
'title': 'Gain Federal Credit Union Data Breach Exposes Sensitive Member '
'Information',
'type': 'Data Breach'}