AT&T

The California Office of the Attorney General reported that AT&T experienced unauthorized access to customer accounts between February and July 2014. The breach potentially involved Customer Proprietary Network Information (CPNI), but there is no evidence that Social Security Numbers were compromised. AT&T is offering affected individuals one year of free credit monitoring.

Source: https://oag.ca.gov/ecrime/databreach/reports/sb24-55594

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

"id": "att025072625",
"linkid": "att",
"type": "Breach",
"date": "2/2014",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'industry': 'Telecommunications',
                        'location': 'United States',
                        'name': 'AT&T',
                        'type': 'Telecommunications Company'}],
 'attack_vector': 'Unauthorized Access',
 'data_breach': {'type_of_data_compromised': ['Customer Proprietary Network '
                                              'Information (CPNI)']},
 'description': 'The California Office of the Attorney General reported that '
                'AT&T experienced unauthorized access to customer accounts '
                'between February and July 2014. The breach potentially '
                'involved Customer Proprietary Network Information (CPNI), but '
                'there is no evidence that Social Security Numbers were '
                'compromised. AT&T is offering affected individuals one year '
                'of free credit monitoring.',
 'impact': {'data_compromised': ['Customer Proprietary Network Information '
                                 '(CPNI)']},
 'references': [{'source': 'California Office of the Attorney General'}],
 'response': {'remediation_measures': ['Offering one year of free credit '
                                       'monitoring']},
 'title': 'AT&T Customer Account Breach',
 'type': 'Data Breach'}