AT&T Mobility, LLC

On June 10, 2014, the California Office of the Attorney General reported a data breach involving AT&T Mobility, LLC. The breach occurred between April 9 and April 21, 2014, involving unauthorized access to customer personal identifying information, including Social Security numbers and Customer Proprietary Network Information (CPNI). The exact number of individuals affected is unknown.

Source: https://oag.ca.gov/ecrime/databreach/reports/sb24-45415

TPRM report: https://www.rankiteo.com/company/att

"id": "att444072925",
"linkid": "att",
"type": "Breach",
"date": "4/2014",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'industry': 'Telecommunications',
                        'location': 'United States',
                        'name': 'AT&T Mobility, LLC',
                        'type': 'Telecommunications Company'}],
 'attack_vector': 'Unauthorized Access',
 'data_breach': {'personally_identifiable_information': 'Yes',
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Social Security numbers',
                                              'Customer Proprietary Network '
                                              'Information (CPNI)']},
 'date_detected': '2014-06-10',
 'date_publicly_disclosed': '2014-06-10',
 'description': 'Unauthorized access to customer personal identifying '
                'information, including Social Security numbers and Customer '
                'Proprietary Network Information (CPNI).',
 'impact': {'data_compromised': ['Social Security numbers',
                                 'Customer Proprietary Network Information '
                                 '(CPNI)']},
 'references': [{'date_accessed': '2014-06-10',
                 'source': 'California Office of the Attorney General'}],
 'title': 'AT&T Mobility Data Breach',
 'type': 'Data Breach'}