Prosper Data Breach
Last Updated on November 18, 2025
At A Glance
- What's Going On?
- Attorneys are gathering people affected by the Prosper data breach to take legal action via mass arbitration.
- What You Can Do
- If you're a current or former Prosper member or accountholder and live in California, New York or Virginia, fill out this quick form to sign up. Though there are no guarantees, you could be owed $100s under state law.
- What Am I Signing Up For, Exactly?
- You are signing up for what’s known as mass arbitration, which is different from a class action and involves hundreds or thousands of consumers filing individual arbitration claims against the same company at the same time.
- Does This Cost Anything?
- It costs nothing to sign up, and the attorneys will only get paid if they win your claim.
Affected by the Prosper data breach?
If so, join others taking action. It doesn't cost anything, and all you have to do is fill out a quick form using the link below.
Prosper Data Breach: Legal Investigation
Attorneys working with ClassAction.org are gathering consumers to sign up for legal action in light of the Prosper data breach.
If you believe you were affected, keep reading to learn more and find out how to sign up.
Prosper Security Incident: What Happened?
On September 1, 2025, Prosper Marketplace, Inc. and Prosper Funding LLC detected a security breach where an unauthorized party accessed their systems containing sensitive information, according to a report filed with the Securities and Exchange Commission. The San Francisco-based fintech company, known for offering personal loans and online financial solutions, stated on its website that unauthorized queries were made on company databases that store customer and applicant details.
Although there is no evidence of customer accounts or funds being compromised, the Prosper data breach involved access to confidential, proprietary, and personal data, including Social Security numbers. As the investigation continues, the company is assessing the extent of the compromised information and will notify affected individuals accordingly.
According to some reports, the Prosper data breach may have impacted as many as 17.6 million people.
What You Can Do After the Prosper Data Breach
If your information was exposed in the data breach, you may be able to take legal action via mass arbitration, which is different from a class action lawsuit.
Though there are no guarantees, those who sign up could be entitled to anywhere from $550 to over $1,000 under state consumer protection and privacy laws.
Affected by the Prosper data breach? Fill out this quick, secure form to join others taking action.
Take Action
If you're a current or former Prosper member or accountholder and live in California, New York or Virginia, join others taking action by filling out this quick, secure form.
Published: September 18, 2025
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The information submitted on this page will be forwarded to Milberg Coleman Bryson Phillips Grossman, PLLC who has sponsored this investigation.
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