Central One Federal Credit Union

Central One Federal Credit Union, a community-based financial institution in Massachusetts, experienced a data breach between August 26 and August 30, 2025, when an unauthorized third party accessed its network and exfiltrated files containing sensitive personal data. The compromised information included names, Social Security numbers, driver’s license/state ID numbers, financial records, and medical/health insurance details, affecting up to 57,000 individuals. The breach was detected just before Labor Day, prompting an internal investigation and system lockdown. The incident exposed customers to risks of identity theft, financial fraud, and unauthorized account activity, leading to a class-action lawsuit investigation by Edelson Lechtzin LLP for potential legal remedies. The breach underscores significant vulnerabilities in Central One’s cybersecurity defenses, with long-term reputational and financial repercussions for both the institution and its members.

Source: https://www.globenewswire.com/news-release/2025/11/13/3187956/0/en/DATA-BREACH-ALERT-Edelson-Lechtzin-LLP-is-Investigating-Claims-on-Behalf-of-Central-One-Federal-Credit-Union-Customers-Whose-Data-May-Have-Been-Compromised.html

TPRM report: https://www.rankiteo.com/company/central-one-federal-credit-union

"id": "cen5702257111425",
"linkid": "central-one-federal-credit-union",
"type": "Breach",
"date": "8/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': '57,000',
                        'industry': 'Financial Services',
                        'location': 'Shrewsbury, Massachusetts, USA',
                        'name': 'Central One Federal Credit Union',
                        'type': 'Credit Union'}],
 'customer_advisories': 'Affected individuals advised to monitor accounts and '
                        'credit reports for suspicious activity',
 'data_breach': {'data_exfiltration': 'Yes (files copied by unauthorized third '
                                      'party)',
                 'number_of_records_exposed': '57,000',
                 'personally_identifiable_information': ['Names',
                                                         'Social Security '
                                                         'numbers',
                                                         'Driver’s license or '
                                                         'state ID numbers'],
                 'sensitivity_of_data': 'High (includes SSNs, financial, and '
                                        'medical data)',
                 'type_of_data_compromised': ['Personally Identifiable '
                                              'Information (PII)',
                                              'Financial Data',
                                              'Health Insurance Information']},
 'date_detected': '2025-09-02',
 'date_publicly_disclosed': '2025-11-13',
 'description': 'Central One Federal Credit Union detected unusual network '
                'activity just before Labor Day 2025. An unauthorized third '
                'party accessed their computer network between August 26 and '
                'August 30, 2025, copying files containing personal details '
                'such as names, Social Security numbers, driver’s license or '
                'state ID numbers, financial data, and medical or health '
                'insurance information. Up to 57,000 individuals were '
                'affected. Edelson Lechtzin LLP is investigating a class '
                'action lawsuit on behalf of affected individuals.',
 'impact': {'brand_reputation_impact': 'Potential (class action lawsuit '
                                       'investigation)',
            'data_compromised': ['Names',
                                 'Social Security numbers',
                                 'Driver’s license or state ID numbers',
                                 'Financial data',
                                 'Medical or health insurance information'],
            'identity_theft_risk': 'High (personal and financial data exposed)',
            'legal_liabilities': 'Potential (class action lawsuit '
                                 'investigation by Edelson Lechtzin LLP)',
            'payment_information_risk': 'High (financial data exposed)'},
 'investigation_status': 'Ongoing (class action investigation by Edelson '
                         'Lechtzin LLP)',
 'ransomware': {'data_exfiltration': 'Yes (files copied)'},
 'recommendations': ['Monitor account statements for suspicious activity',
                     'Monitor credit reports for unauthorized activity',
                     'Take steps to protect against identity theft and fraud'],
 'references': [{'date_accessed': '2025-11-13',
                 'source': 'Edelson Lechtzin LLP Press Release',
                 'url': 'https://www.globenewswire.com/news-release/2025/11/13/2234567/0/en/Edelson-Lechtzin-LLP-Investigates-Central-One-Federal-Credit-Union-Data-Breach.html'},
                {'source': 'Edelson Lechtzin LLP Website',
                 'url': 'https://www.edelson-law.com'}],
 'regulatory_compliance': {'legal_actions': 'Potential class action lawsuit '
                                            '(under investigation by Edelson '
                                            'Lechtzin LLP)'},
 'response': {'communication_strategy': 'Public disclosure via press release; '
                                        'advisories for affected individuals '
                                        'to monitor accounts and credit '
                                        'reports',
              'incident_response_plan_activated': 'Yes (measures taken to '
                                                  'secure systems and '
                                                  'investigation initiated)'},
 'threat_actor': 'Unauthorized third party',
 'title': 'Central One Federal Credit Union Data Breach (2025)',
 'type': 'Data Breach'}