Citizens Bank of Las Cruces

On April 7, 2021, Citizens Bank of Las Cruces suffered a data breach due to unauthorized access to employee computers. The incident was reported to the Maine Office of the Attorney General on September 20, 2021, confirming that the breach exposed sensitive financial data of three Maine residents, including their financial account numbers. The breach stemmed from a security lapse allowing external actors to infiltrate employee systems, potentially compromising confidential customer information. While the scale of affected individuals appears limited, the exposure of financial account details poses significant risks, including fraud, identity theft, or unauthorized transactions. The bank did not disclose whether the breach was part of a broader cyberattack (e.g., phishing, malware) or an isolated incident. However, the involvement of employee computers suggests possible internal vulnerabilities or credential compromise. The delayed disclosure (over five months after the breach) raises concerns about incident response protocols and transparency. Though no ransomware was reported, the breach highlights critical gaps in data protection measures, particularly for financial institutions handling sensitive customer records. The long-term impact may include reputational damage, regulatory scrutiny, and potential legal liabilities for failing to safeguard client data.

Source: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/2dabc011-23f6-4e3a-8ff3-9b1a2cd58350.shtml

TPRM report: https://www.rankiteo.com/company/citizens-banklc

"id": "cit610090125",
"linkid": "citizens-banklc",
"type": "Breach",
"date": "4/2021",
"severity": "60",
"impact": "3",
"explanation": "Attack with significant impact with internal employee data leaks"

{'affected_entities': [{'customers_affected': 3,
                        'industry': 'Financial Services',
                        'location': 'Las Cruces, New Mexico, USA',
                        'name': 'Citizens Bank of Las Cruces',
                        'type': 'Bank'},
                       {'industry': 'Legal/Regulatory',
                        'location': 'Maine, USA',
                        'name': 'Maine Office of the Attorney General',
                        'type': 'Government Agency'}],
 'data_breach': {'data_exfiltration': 'Likely (unauthorized access to files)',
                 'number_of_records_exposed': 3,
                 'sensitivity_of_data': 'High (financial information)',
                 'type_of_data_compromised': ['financial account numbers']},
 'date_detected': '2021-04-07',
 'date_publicly_disclosed': '2021-09-20',
 'description': 'Unauthorized access to employee computers at Citizens Bank of '
                'Las Cruces, affecting 3 Maine residents and exposing their '
                'financial account numbers. The breach was detected and '
                'reported by the Maine Office of the Attorney General on '
                'September 20, 2021, with the incident occurring on or about '
                'April 7, 2021.',
 'impact': {'data_compromised': ['financial account numbers'],
            'identity_theft_risk': 'Potential (financial account numbers '
                                   'exposed)',
            'payment_information_risk': 'Yes (financial account numbers '
                                        'exposed)',
            'systems_affected': ['employee computers']},
 'initial_access_broker': {'high_value_targets': ['employee computers']},
 'investigation_status': 'Reported; details limited',
 'references': [{'source': 'Maine Office of the Attorney General'}],
 'regulatory_compliance': {'regulatory_notifications': 'Maine Office of the '
                                                       'Attorney General'},
 'response': {'communication_strategy': 'Public disclosure via Maine Office of '
                                        'the Attorney General'},
 'title': 'Citizens Bank of Las Cruces Data Breach (2021)',
 'type': 'Data Breach'}