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Prosper data breach17.6M accounts compromised on 2025-09-01
Verified
Prosper (prosper.com) was the source of a data breach dated 2025-09-01, exposing 17,605,276 accounts. The details below are mirrored from Have I Been Pwned and reflect the source's account of the incident at the time of publication.
Incident Report
| Target Organization | Prosper |
|---|---|
| Source Name | Prosper |
| Domain | prosper.com |
| Breach Date | 2025-09-01 |
| Added to HIBP | 2025-10-16 |
| Accounts Compromised | 17,605,276(17.6M) |
| Data Exposed | Browser user agent detailsCredit status informationDates of birthEmail addressesEmployment statusesGovernment issued IDsIncome levelsIP addressesNamesPhysical addresses |
| Status | Verified by HIBP |
Description
In September 2025, Prosper announced that it had detected unauthorised access to their systems, which resulted in the exposure of customer and applicant information. The data breach impacted 17.6M unique email addresses, along with other customer information, including US Social Security numbers. Prosper advised that they did not find any evidence of unauthorised access to customer accounts and funds, and that their customer-facing operations were uninterrupted. Further information about the incident is contained in Prosper's FAQs.
Disclaimer
HackerFeeds does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.