Discover Financial Services

On October 17, 2013, the California Office of the Attorney General disclosed a data breach affecting **Discover Financial Services**. The incident involved the potential compromise of account information for **two credit cards**, though no evidence of unauthorized use or fraudulent activity was reported. The exact method of the breach (e.g., cyber attack, insider threat, or system vulnerability) and the full scope of affected individuals remained undisclosed. While the exposure was limited to a minimal number of accounts, the incident prompted regulatory notification due to the sensitivity of financial data. The lack of confirmed misuse suggested containment, but the breach still posed reputational risks and operational scrutiny for Discover. No further details were provided on whether the compromise stemmed from external hacking, internal negligence, or a technical flaw in their systems.

Source: https://oag.ca.gov/ecrime/databreach/reports/sb24-42999

TPRM report: https://www.rankiteo.com/company/discover-financial-services

"id": "dis023090625",
"linkid": "discover-financial-services",
"type": "Breach",
"date": "10/2013",
"severity": "60",
"impact": "2",
"explanation": "Attack limited on finance or reputation"

{'affected_entities': [{'industry': 'Banking/Financial',
                        'location': 'United States (California)',
                        'name': 'Discover Financial Services',
                        'type': 'Financial Services'}],
 'customer_advisories': 'Notification letter sent (via California AG)',
 'data_breach': {'number_of_records_exposed': '2',
                 'sensitivity_of_data': 'High (payment card data)',
                 'type_of_data_compromised': 'Account information '
                                             '(credit/debit card details)'},
 'date_publicly_disclosed': '2013-10-17',
 'description': 'The California Office of the Attorney General reported a data '
                'breach involving Discover Financial Services on October 17, '
                '2013. A notification letter indicated that account '
                'information for two cards may have been compromised, but '
                'there was no evidence of unauthorized use. Specific details '
                'on the method of breach and the number of individuals '
                'affected were not disclosed.',
 'impact': {'data_compromised': 'Account information for two cards',
            'payment_information_risk': 'Potential (no evidence of '
                                        'unauthorized use)'},
 'investigation_status': 'Limited details available; no evidence of '
                         'unauthorized use reported',
 'references': [{'source': 'California Office of the Attorney General'}],
 'regulatory_compliance': {'regulatory_notifications': 'California Office of '
                                                       'the Attorney General'},
 'response': {'communication_strategy': 'Notification letter sent to affected '
                                        'parties via the California Office of '
                                        'the Attorney General'},
 'title': 'Data Breach at Discover Financial Services (2013)',
 'type': 'Data Breach'}