All Breaches
September 1, 2025 Verified Financial technology and consumer lending

Prosper Data Breach

The 2025 Prosper data breach affected 17,605,276 unique email addresses and exposed highly sensitive identity and financial data.

17.6 Million
Reported Records
18
Data Types
Critical
Severity
Yes
Verification

Exposed Data Types

18
Account numbers
Bank account numbers
Browser user agent details
Credit status information
Dates of birth
Driver's license numbers
Email addresses
Employment statuses
Financial information
Government issued IDs
Income levels
IP addresses
Names
Passport numbers
Payment card information
Physical addresses
Social security numbers
Tax information

Additional Information

Added DateOctober 16, 2025
Breach DateSeptember 1, 2025
Domainprosper.com
Last Content UpdateJuly 19, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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