Prosper Marketplace, Inc.
ent_adb38792d0ee9567e5cf55c9
Disclosures
18
State AG · SEC 8-K · 14 jurisdictions
Multi-filing incidents
2
incidents joining 2+ filings here
Max affected reported
13,076,476
nationwide · State AG TX
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Prosper Marketplace, Inc.
- Normalized
- prosper marketplace— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- prosper.com
Disclosure history (18)newest first
- South Carolina State AGas victim2025-12-11
Prosper Marketplace, Inc. disclosed a cybersecurity event discovered on September 1, 2025, involving unauthorized database queries between June and August 2025 that obtained customer and applicant personal information. No unauthorized access to customer accounts or funds occurred. Prosper reported the incident to law enforcement, engaged a cybersecurity firm, and is offering two years of complimentary credit monitoring and identity restoration services via Experian to affected individuals.
- Texas State AGas victim2025-12-10
Prosper Marketplace, Inc based in San Francisco, California, a financial services entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-09-01 and reported on 2025-12-10. 1,161,581 Texas residents were affected. 13,076,476 individuals affected in total. Types of information involved: Name of individual;Social Security Number Information;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Date of Birth. Consumers were notified via Posted at company website or special website;U.S. Mail;Email.
- Indiana State AGas victim2025-12-09
Prosper Marketplace Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2025-04-29 and was reported on 2025-12-09. 275,894 Indiana residents were affected. 13,076,476 individuals affected in total.
- Delaware State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event discovered on September 1, 2025, involving unauthorized database queries between June and August 2025. Personal information, including government identifiers and basic identity data, was obtained. No unauthorized account access or fund theft occurred. Prosper engaged a cybersecurity firm, reported to law enforcement, and offers two years of credit monitoring via Experian.
- California State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event where unauthorized activity was discovered on September 1, 2025. Investigation revealed that between June and August 2025, personal information was obtained through queries on company databases storing customer and applicant data. The company engaged a cybersecurity firm, notified law enforcement, and is offering two years of credit monitoring and identity restoration services via Experian. Enhanced security controls have been implemented.
- Washington State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event discovered on September 1, 2025. Between June and August 2025, unauthorized actors accessed customer and applicant databases via compromised credentials, exfiltrating personal information including names, SSNs, and DOBs. 249,848 Washington residents were affected. Prosper engaged forensic investigators, notified law enforcement, and offered two years of credit monitoring through Experian.
- Montana State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event where unauthorized queries on customer databases obtained personal information between June and August 2025. The incident was discovered on September 1, 2025. Prosper reported the incident to law enforcement, engaged a cybersecurity firm, and is offering two years of complimentary credit monitoring and identity restoration services through Experian.
- Nebraska State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event discovered on September 1, 2025, involving unauthorized database queries between June and August 2025. The incident resulted in the exfiltration of Social Security Numbers and Dates of Birth. Prosper engaged a cybersecurity firm, reported to law enforcement, and offered two years of credit monitoring via Experian. The incident status is contained.
- Iowa State AGas victim2025-12-09
Prosper Marketplace, Inc. notified the Iowa AG of a security incident discovered on September 1, 2025. Unauthorized actors accessed data of approximately 1,008 Iowa residents between June and August 2025. Compromised data included SSNs, dates of birth, and bank account numbers. Prosper engaged Mandiant, notified law enforcement, and is offering two years of credit monitoring.
- Nebraska State AGas victim2025-12-09
Prosper Marketplace, Inc. disclosed a cybersecurity event discovered on September 1, 2025, involving unauthorized database queries between June and August 2025. Personal information, including names and government IDs, was obtained. Prosper reported the incident to law enforcement, engaged a cybersecurity firm, and offered two years of credit monitoring via Experian. Enhanced security controls were implemented.
- Massachusetts State AGas victim2025-12-09
Prosper Marketplace, Inc reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-09. 189,828 Massachusetts residents were affected.
- Oregon State AGas victim2025-12-09
Prosper Marketplace, Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2025-12-09. The breach occurred during 4/29/2025 - 9/2/2025. The breach was discovered on 9/1/2025. 13,076,476 individuals were affected. Notice was sent on 12/9/2025.
- Illinois State AGas victim2025-12-01
PROSPER MARKETPLACE, INC. filed a data-breach notice with the Illinois Attorney General in December 2025 (case 25-12-642). The register records the breach as discovered on September 1, 2025. Personal information types reported: drivers license, financial account number, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- FEDERALSEC 8-Kas victim2025-09-17
Prosper Marketplace, Inc. and Prosper Funding LLC reported on September 1, 2025, that an unauthorized third party gained access to systems containing proprietary and confidential information. The Company identified that confidential, proprietary, and personal information, including Social Security numbers, was obtained through unauthorized database queries. The investigation is ongoing, and the Company has yet to determine the full scope or number of affected individuals. No evidence of unauthorized access to customer accounts and funds was found.
- Massachusetts State AGas victim2019-11-22
Prosper Marketplace, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2019-11-22. 1 Massachusetts residents were affected. The report records the breach type as electronic.
- New Hampshire State AGas reporting2018-11-26
Prosper Funding LLC notified the NH AG that unauthorized access to two Office 365 email accounts occurred around Oct 3, 2018, discovered Oct 15, 2018. Data exposed included names, SSNs, government IDs, and financial account info for 12 NH residents. Prosper engaged forensic consultants, enabled 2FA, notified law enforcement, and offered 1 year of Experian credit monitoring.
- California State AGas victim2018-11-26
Prosper Marketplace, Inc. filed a data breach notification with the California Attorney General. The breach occurred on October 3, 2018. The filing provides only the organization name and breach date, with no further details regarding the nature of the incident, data types affected, or number of individuals impacted.
- Massachusetts State AGas victim2018-11-26
Prosper Marketplace Inc reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2018-11-26. 9 Massachusetts residents were affected. The report records the breach type as electronic.