Yolo Federal Credit Union

On June 13, 2013, the California Office of the Attorney General disclosed a data breach at Yolo Federal Credit Union, where unauthorized actors gained access to ATM/VISA Debit card numbers of an unspecified number of members. The breach occurred in two phases, on March 29, 2013, and May 28, 2013, though the exact method of intrusion was not detailed. The compromised data primarily involved financial card information, posing risks of fraudulent transactions or identity theft for affected customers.In response, the credit union took corrective actions, including issuing new cards to impacted members and enhancing monitoring and security protocols to prevent future incidents. While no evidence suggested broader personal data (e.g., Social Security numbers or addresses) was exposed, the breach highlighted vulnerabilities in payment system protections. The incident underscored the need for financial institutions to bolster defenses against cardholder data theft, a common target for cybercriminals seeking financial gain. The breach’s scope remained limited to payment card details, with no reported secondary consequences like systemic outages or large-scale fraud waves.

Source: https://oag.ca.gov/ecrime/databreach/reports/sb24-41970

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

"id": "yol1004091725",
"linkid": "yolo-federal-credit-union",
"type": "Breach",
"date": "3/2013",
"severity": "60",
"impact": "2",
"explanation": "Attack limited on finance or reputation"

{'affected_entities': [{'customers_affected': 'Unspecified',
                        'industry': 'Financial Services',
                        'location': 'California, USA',
                        'name': 'Yolo Federal Credit Union',
                        'type': 'Credit Union'}],
 'customer_advisories': ['New cards issued to affected members'],
 'data_breach': {'number_of_records_exposed': 'Unspecified',
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['ATM/VISA Debit card numbers']},
 'date_detected': '2013-06-13',
 'date_publicly_disclosed': '2013-06-13',
 'description': 'On June 13, 2013, the California Office of the Attorney '
                'General reported a data breach at Yolo Federal Credit Union '
                'involving unauthorized access to cardholder information, with '
                'breach dates on March 29, 2013, and May 28, 2013. The '
                'incident affected an unspecified number of individuals, and '
                'the specific types of compromised data included ATM/VISA '
                'Debit card numbers. Yolo Federal Credit Union responded by '
                'issuing new cards to affected members and implementing '
                'monitoring and security measures.',
 'impact': {'data_compromised': ['ATM/VISA Debit card numbers'],
            'identity_theft_risk': 'High (cardholder information exposed)',
            'payment_information_risk': 'High (ATM/VISA Debit card numbers '
                                        'compromised)'},
 'post_incident_analysis': {'corrective_actions': ['Issued new cards to '
                                                   'affected members',
                                                   'Implemented monitoring and '
                                                   'security measures']},
 'references': [{'date_accessed': '2013-06-13',
                 'source': 'California Office of the Attorney General'}],
 'regulatory_compliance': {'regulatory_notifications': ['California Office of '
                                                        'the Attorney '
                                                        'General']},
 'response': {'enhanced_monitoring': True,
              'incident_response_plan_activated': True,
              'law_enforcement_notified': True,
              'recovery_measures': ['Implemented monitoring and security '
                                    'measures'],
              'remediation_measures': ['Issued new cards to affected members']},
 'title': 'Data Breach at Yolo Federal Credit Union',
 'type': 'Data Breach'}