Prosper

Prosper, a peer-to-peer (P2P) lending company, suffered a major **cyberattack** resulting in the **exfiltration of highly sensitive personal data** belonging to **17.6 million individuals**. The breach exposed a vast trove of confidential records, including financial and personally identifiable information (PII), which could lead to severe consequences such as identity theft, financial fraud, and reputational damage. The scale of the breach—affecting millions of customers—highlights a critical failure in data security protocols, potentially eroding trust in the company’s ability to safeguard user data. The incident underscores the growing threat of large-scale data exfiltration by malicious actors targeting financial institutions. Given the nature of the stolen data, affected individuals face long-term risks, including unauthorized access to credit profiles, loan fraud, and targeted phishing campaigns. The breach also raises regulatory concerns, as Prosper may face legal penalties for failing to protect customer data under data protection laws like **CCPA** or **GDPR** (if applicable).

Source: https://www.teiss.co.uk/news/prosper-data-breach-exposes-176-million-records-says-security-expert-troy-hunt-16575

TPRM report: https://www.rankiteo.com/company/prosper-marketplace

"id": "pro0932709102025",
"linkid": "prosper-marketplace",
"type": "Breach",
"date": "5/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': '17.6 million',
                        'industry': 'Financial Services (Peer-to-Peer Lending)',
                        'name': 'Prosper',
                        'type': 'Company'}],
 'data_breach': {'data_exfiltration': True,
                 'number_of_records_exposed': '17.6 million',
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': 'Highly sensitive personal data'},
 'description': 'Peer-to-peer (P2P) lending company Prosper has reportedly '
                'fallen victim to a significant cyberattack, during which '
                'malicious actors compromised and exfiltrated highly sensitive '
                'personal data belonging to over 17 million individuals.',
 'impact': {'data_compromised': 'Highly sensitive personal data',
            'identity_theft_risk': 'High (due to sensitive personal data '
                                   'exposure)'},
 'references': [{'source': 'Troy Hunt (Security Expert)'}],
 'title': 'Prosper Data Breach Exposes 17.6 Million Records',
 'type': 'Data Breach'}