Thompson Coburn LLP

The Maine Office of the Attorney General reported a data breach involving Thompson Coburn LLP on April 30, 2025. The breach, which was discovered on November 19, 2024, occurred due to an external system breach (hacking) on May 28, 2024, affecting 67,026 individuals, including 59 Maine residents. The compromised information included names and Social Security numbers, and identity theft protection services were offered.

Source: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/6dafd081-b175-4c00-b161-c4a5b8c43cfb.html

TPRM report: https://www.rankiteo.com/company/thompson-coburn-llp

"id": "tho224072725",
"linkid": "thompson-coburn-llp",
"type": "Breach",
"date": "5/2024",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 67026,
                        'industry': 'Legal',
                        'name': 'Thompson Coburn LLP',
                        'type': 'Law Firm'}],
 'attack_vector': 'External System Breach (Hacking)',
 'data_breach': {'number_of_records_exposed': 67026,
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Names',
                                              'Social Security numbers']},
 'date_detected': '2024-11-19',
 'date_publicly_disclosed': '2025-04-30',
 'description': 'The Maine Office of the Attorney General reported a data '
                'breach involving Thompson Coburn LLP on April 30, 2025. The '
                'breach, which was discovered on November 19, 2024, occurred '
                'due to an external system breach (hacking) on May 28, 2024, '
                'affecting 67,026 individuals, including 59 Maine residents. '
                'The compromised information included names and Social '
                'Security numbers, and identity theft protection services were '
                'offered.',
 'impact': {'data_compromised': ['Names', 'Social Security numbers'],
            'identity_theft_risk': 'High'},
 'references': [{'date_accessed': '2025-04-30',
                 'source': 'Maine Office of the Attorney General'}],
 'title': 'Data Breach at Thompson Coburn LLP',
 'type': 'Data Breach'}