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Prosper Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier law firms specializing in data breach cases, is investigating the Prosper Marketplace, Inc. data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Prosper Marketplace, Inc.
Prosper Marketplace, Inc. is a financial technology company based in San Francisco. Founded in 2005, Prosper operates one of the largest peer-to-peer lending platforms in the United States. Through its online marketplace, Prosper connects borrowers seeking personal loans with investors who fund those loans.
The company has facilitated more than $23 billion in personal loans for over 1.3 million people. Prosper also offers additional financial products, including credit cards and home equity lines of credit. Prosper Funding LLC serves as the servicing entity for Prosper Marketplace Inc., managing borrower and investor relationships and servicing all loans originated through the platform.
What Happened?
On Sept. 1, 2025, Prosper discovered unauthorized activity on its systems. The company quickly took action to stop the activity, enhance security measures and began working with a cybersecurity firm to investigate. Prosper also notified law enforcement and began sending notification letters to individuals whose data was impacted.
The breach occurred between April 29, 2025, and Sept. 2, 2025. Prosper’s analysis concluded that personal information was obtained through unauthorized queries on company databases that store customer and applicant data.
The breach affected 13,076,476 individuals in the United States, including more than 1.1 million in Texas, nearly 190,000 in Massachusetts, over 33,000 in Montana, nearly 250,000 in Washington and more than 1,000 in Iowa.
Prosper began notifying affected consumers by mail, email and through a dedicated website on Dec. 9, 2025.
What Types of Information were Exposed?
According to Prosper, the following information was exposed:
- Names
- Social Security numbers / National ID numbers
- Dates of birth
- Bank account numbers
- Prosper account numbers
- Other financial / credit application information
- Driver’s license numbers
- Marriage or birth certificates
- Passport numbers
- Tax information
- Payment card numbers
Your Rights and Next Steps
If you received a notification from Prosper Marketplace, Inc. or believe your information may have been compromised, there are important steps you can take. First, review any communications from Prosper carefully and consider enrolling in the two years of complimentary credit monitoring and identity restoration services being offered through Experian. This service can help detect signs of identity theft or fraud.
It is also wise to regularly review account statements and credit reports for unauthorized activity. If you notice suspicious transactions, report them immediately to your financial institution. You also have the right to file a police report and notify your state attorney general or the Federal Trade Commission if you suspect identity theft.
Lawyers are ready to help individuals affected by the Prosper data breach understand their legal options. If your personal information was exposed, you may have the right to seek compensation for any harm or risk you experienced as a result of the breach.
You May Be Entitled to Compensation
If your information was compromised in the Prosper Marketplace, Inc. data breach, you may be eligible for compensation. Lawyers are investigating claims on behalf of affected individuals and are ready to assist with the process.
To find out if you qualify and to join a lawsuit, complete the below form.
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