Grandison Management, Inc.

On March 22, 2022, the Maine Attorney General's Office disclosed a data breach affecting Grandison Management, Inc., originating from an external hacking incident on May 15, 2021. The breach exposed sensitive personal information of 100,488 individuals, including financial account numbers, heightening risks of identity theft and fraud. While the exact extent of misuse remains undisclosed, the company responded by offering one year of identity theft protection services, encompassing credit monitoring and recovery assistance. The breach underscores severe vulnerabilities in third-party system security, leading to large-scale exposure of customer financial data. Though no immediate fraudulent activity was confirmed, the potential for long-term financial and reputational harm persists. The incident aligns with broader trends of cybercriminals targeting organizations with weak perimeter defenses, exploiting gaps to harvest high-value data for malicious purposes. The proactive offering of credit monitoring suggests acknowledgment of significant risk to affected individuals, though the delay in public disclosure (nearly 10 months) may further erode trust in the company’s data stewardship and incident response protocols.

Source: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/079706b6-2530-4e52-9df6-9b345c259d24.shtml

TPRM report: https://www.rankiteo.com/company/grandison-management-inc

"id": "gra547091725",
"linkid": "grandison-management-inc",
"type": "Breach",
"date": "5/2021",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 100488,
                        'name': 'Grandison Management, Inc.',
                        'type': 'Company'}],
 'attack_vector': 'External System Breach (Hacking)',
 'customer_advisories': 'Identity theft protection services offered for one '
                        'year',
 'data_breach': {'number_of_records_exposed': 100488,
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Sensitive Personal Information',
                                              'Financial Account Numbers']},
 'date_detected': '2021-05-15',
 'date_publicly_disclosed': '2022-03-22',
 'description': "On March 22, 2022, the Maine Attorney General's Office "
                'reported a data breach involving Grandison Management, Inc. '
                'The breach, which occurred on May 15, 2021, was due to an '
                'external system breach (hacking) and potentially exposed '
                'sensitive personal information of 100,488 individuals, '
                'including financial account numbers. Identity theft '
                'protection services were offered for one year, including '
                'credit monitoring and recovery services.',
 'impact': {'data_compromised': ['Sensitive Personal Information',
                                 'Financial Account Numbers'],
            'identity_theft_risk': 'High (Identity theft protection services '
                                   'offered)',
            'payment_information_risk': 'High (Financial account numbers '
                                        'exposed)'},
 'references': [{'date_accessed': '2022-03-22',
                 'source': "Maine Attorney General's Office"}],
 'regulatory_compliance': {'regulatory_notifications': 'Maine Attorney '
                                                       "General's Office"},
 'response': {'recovery_measures': 'Identity theft protection services (credit '
                                   'monitoring and recovery) offered for one '
                                   'year'},
 'title': 'Grandison Management, Inc. Data Breach (2021)',
 'type': 'Data Breach'}