Kiernan Trebach LLP

The Maine Attorney General's Office reported that Kiernan Trebach experienced unauthorized access to its systems on three occasions: May 4, 2023, October 26, 2023, and September 24, 2024. The breach potentially affected the personal information of one Maine resident, including their name and Social Security number. Written notice was provided to the affected individual on May 7, 2025.

Source: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/6ea0bfd4-593a-4058-a978-ef4e456b116a.html

TPRM report: https://www.rankiteo.com/company/kiernan-trebach-llp

"id": "kie539072525",
"linkid": "kiernan-trebach-llp",
"type": "Breach",
"date": "5/2023",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 1,
                        'name': 'Kiernan Trebach',
                        'type': 'Company'}],
 'attack_vector': 'Unauthorized Access',
 'data_breach': {'number_of_records_exposed': 1,
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Name',
                                              'Social Security Number']},
 'date_detected': ['2023-05-04', '2023-10-26', '2024-09-24'],
 'date_publicly_disclosed': '2025-05-07',
 'description': 'Unauthorized access to Kiernan Trebach systems on three '
                'occasions potentially affecting the personal information of '
                'one Maine resident.',
 'impact': {'data_compromised': ['Name', 'Social Security Number']},
 'references': [{'source': "Maine Attorney General's Office"}],
 'title': 'Kiernan Trebach Data Breach',
 'type': 'Data Breach'}