SEI-Group Holdings, LLC

The Maine Office of the Attorney General disclosed on July 8, 2022, that SEI-Group Holdings, LLC suffered a data breach between March 24, 2022, and April 16, 2022, affecting 2,080 individuals, including at least one Maine resident. The incident, identified on June 10, 2022, resulted from an external system breach (hacking), potentially exposing names, Social Security numbers, and financial account information of victims. In response, SEI-Group is providing 24 months of credit monitoring and identity protection services via Experian to impacted individuals. The compromised data particularly financial and personally identifiable information (PII) poses significant risks, including identity theft, financial fraud, and long-term reputational harm for the company. The breach underscores vulnerabilities in SEI-Group’s cybersecurity defenses, raising concerns about third-party attacks targeting sensitive customer data.

Source: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/c360dd63-625e-484b-ba6a-f9f36f53a539.shtml

TPRM report: https://www.rankiteo.com/company/sei-llc

"id": "sei009091825",
"linkid": "sei-llc",
"type": "Breach",
"date": "3/2022",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization’s existence"

{'affected_entities': [{'customers_affected': 2080,
                        'name': 'SEI-Group Holdings, LLC',
                        'type': 'Private Company'}],
 'attack_vector': 'External System Breach (Hacking)',
 'customer_advisories': '24 months of credit monitoring and identity '
                        'protection services offered to affected individuals',
 'data_breach': {'number_of_records_exposed': 2080,
                 'personally_identifiable_information': ['Names',
                                                         'Social Security '
                                                         'Numbers'],
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Personally Identifiable '
                                              'Information (PII)',
                                              'Financial Data']},
 'date_detected': '2022-06-10',
 'date_publicly_disclosed': '2022-07-08',
 'description': 'The Maine Office of the Attorney General reported that '
                'SEI-Group Holdings, LLC experienced a data breach from March '
                '24, 2022, to April 16, 2022, impacting 2,080 individuals. The '
                'breach involved external system hacking and potentially '
                'compromised names, Social Security numbers, and financial '
                'account information. SEI is offering 24 months of credit '
                'monitoring and identity protection services through Experian '
                'to those affected.',
 'impact': {'data_compromised': ['Names',
                                 'Social Security Numbers',
                                 'Financial Account Information'],
            'identity_theft_risk': 'High (PII and financial data exposed)',
            'payment_information_risk': 'Yes (Financial account information '
                                        'compromised)'},
 'references': [{'date_accessed': '2022-07-08',
                 'source': 'Maine Office of the Attorney General'}],
 'regulatory_compliance': {'regulatory_notifications': 'Maine Office of the '
                                                       'Attorney General'},
 'response': {'communication_strategy': 'Notification to affected individuals '
                                        'and Maine Attorney General',
              'third_party_assistance': 'Experian (credit monitoring and '
                                        'identity protection services)'},
 'title': 'SEI-Group Holdings, LLC Data Breach (2022)',
 'type': 'Data Breach'}