Impact & Downstream Threats
This breach carries critical risk due to the nature of exposed data fields and the scale of affected records.
- Financial fraud using exposed financial profile data
- Identity theft and synthetic identity construction using government-issued IDs
- Identity verification bypass using name + date of birth combination
- Targeted phishing campaigns using exposed email addresses
- Doxxing risk from physical address exposure
- Employment-based social engineering using job and employer data
Breach Intelligence
Executive Summary
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.
About Prosper
Fintech lender offering personal loans, credit products, and other consumer finance services.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 17.6M records identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Recommended Actions
⚠️ Do not assume this is low sensitivity.
Non-clients may request a breach impact review.
Frequently Asked Questions
In September 2025, Prosper experienced a data breach that exposed approximately 17.6M records containing personal information.
The exposed data includes fields such as credit status, date of birth, email address, employment statuses, financial profile:income.
Approximately 17.6M records were affected based on current breach intelligence.
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ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of Prosper
- Or concerned about credential reuse
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