Prosper Funding LLC

Prosper Funding LLC, a financial lending company, experienced a cybersecurity breach where unauthorized actors accessed its internal network. The investigation confirmed that **personally identifiable information (PII)** of borrowers was compromised, including **names, Social Security numbers, contact details, and financial account information**. The breach exposes affected individuals to **identity theft and financial fraud risks**, though the exact number of impacted borrowers and investors remains undisclosed (potentially several thousand). Prosper responded by halting the attack, notifying law enforcement, and initiating state/federal disclosures. The company is offering **free credit monitoring** to victims and has established a dedicated support line for inquiries. The incident remains under investigation, with ongoing assessments of the exposed data scope.

Source: https://www.claimdepot.com/data-breach/prosper-2025

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

"id": "pro2002120091825",
"linkid": "prosper-marketplace",
"type": "Cyber Attack",
"date": "9/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 'Several thousand borrowers and '
                                              'investors (exact number '
                                              'undisclosed)',
                        'industry': 'Financial Services',
                        'name': 'Prosper Funding LLC',
                        'type': 'Financial Lending Company'}],
 'customer_advisories': ['Dedicated response line (833-918-9464)',
                         'Email notifications sent to impacted consumers '
                         'starting 2025-09-17'],
 'data_breach': {'data_exfiltration': True,
                 'number_of_records_exposed': 'Several thousand (exact number '
                                              'undisclosed)',
                 'personally_identifiable_information': ['Names',
                                                         'Social Security '
                                                         'numbers',
                                                         'Contact information'],
                 'sensitivity_of_data': 'High (includes SSNs, financial '
                                        'account information)',
                 'type_of_data_compromised': ['Personally Identifiable '
                                              'Information (PII)',
                                              'Financial data']},
 'date_publicly_disclosed': '2025-09-17',
 'description': 'Prosper Funding LLC, a financial lending company, experienced '
                'a cybersecurity incident involving unauthorized access to its '
                'internal network. An investigation confirmed that personally '
                'identifiable information (PII) of borrowers was compromised, '
                'including names, Social Security numbers, contact '
                'information, and financial account details. The breach poses '
                'risks of identity theft and financial fraud. The company is '
                'in the early stages of investigation and has begun notifying '
                'affected individuals.',
 'impact': {'brand_reputation_impact': 'Severe (risk of identity theft and '
                                       'financial fraud)',
            'data_compromised': ['Names',
                                 'Social Security numbers',
                                 'Contact information',
                                 'Financial account information',
                                 'Applicant and customer data'],
            'identity_theft_risk': 'High',
            'payment_information_risk': 'High',
            'systems_affected': ['Internal network']},
 'investigation_status': 'Ongoing (early stages)',
 'recommendations': ['Review notices from Prosper carefully',
                     'Monitor financial accounts and credit reports for '
                     'identity theft',
                     'Place fraud alerts or credit freezes with major credit '
                     'bureaus',
                     'Be cautious of unsolicited emails/phone calls requesting '
                     'personal information'],
 'references': [{'source': 'Prosper Funding LLC Website - Cybersecurity '
                           'Incident Customer FAQs'}],
 'regulatory_compliance': {'regulatory_notifications': 'Required state and '
                                                       'federal disclosures '
                                                       'will be made'},
 'response': {'communication_strategy': ['Published Cybersecurity Incident '
                                         'Customer FAQs on website',
                                         'Began emailing impacted consumers on '
                                         '2025-09-17',
                                         'Set up a dedicated response line '
                                         '(833-918-9464, available 8 a.m. to 5 '
                                         'p.m. CT, Monday–Friday)'],
              'containment_measures': ['Stopped the cyberattack'],
              'incident_response_plan_activated': True,
              'law_enforcement_notified': True,
              'recovery_measures': ['Offering free credit monitoring to '
                                    'affected individuals']},
 'title': 'Prosper Funding LLC Data Breach (2025)',
 'type': 'Data Breach'}