Prosper data breach
The Prosper breach happened on September 1, 2025 and exposed 17,605,276 accounts. 10 kinds of data were exposed.
Overview
- Site
- prosper.com
- Breach date
- September 1, 2025
- Recorded on
- October 16, 2025
- Accounts exposed
- 17,605,276
- Exposed data
- Browser user agent details, Credit status information, Dates of birth, Email addresses, Employment statuses, Government issued IDs, Income levels, IP addresses, Names, Physical addresses
- Risk score
- 78 out of 100
Risk based on the exposed data
This breach scores 78 out of 100. The score is driven mostly by Government issued IDs, Credit status information, Physical addresses.
The risk score is a guide to how dangerous a breach is, judged by the kinds of data exposed. The number of accounts is not included.
Breaches from the same period
- Artists&Clients (2025-08-31, 95,351 accounts)
- WIRED (2025-09-08, 2,364,431 accounts)
- Miljödata (2025-08-25, 870,108 accounts)
What affected users should do
- Passwords were not exposed, but you may receive fake emails aimed at the exposed email addresses.
- Turn on two-factor authentication for your login.
- ID numbers were exposed, so watch out for contracts signed in your name.
This site organizes publicly available information about data breaches. Data as of December 28, 2025. Breach dates are as originally listed; when only the month is known, the date is recorded as the 1st.