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Prosper Marketplace, Inc. Data Breach — Case File

CA · AG Filing: Dec 9, 2025

No cost. No obligation. If your data was exposed by Prosper Marketplace, Inc., you may be entitled to financial compensation.

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Exposed Data — What's at Risk

Based on the data types reported in this filing:

Identity Theftcritical risk

Your SSN is the master key to your identity. Once exposed, criminals can open new lines of credit, take out loans, or file taxes in your name.

Identity Verification Bypassmedium risk

Combined with a name and other leaked data, date of birth helps criminals pass identity verification questions at banks and government agencies.

How the Breach Occurred

Prosper Marketplace, Inc. was the subject of a data breach notification filed with the CA Attorney General. The AG filing was recorded on December 9, 2025. The breach or discovery date reported in the filing is April 29, 2025.

From the AG filing description

Prosper Marketplace, Inc. operates as a prominent financial technology company and peer-to-peer lending platform, connecting individual borrowers with institutional and retail investors. Because of its core business model facilitating personal loans, debt consolidation, and credit lines, the company routinely collects and stores deeply sensitive financial and personal information from thousands of consumers across the country. Users must submit extensive documentation to verify their creditworthiness, income, and identity, meaning Prosper maintains vaults of high-value data necessary to process loan applications, manage repayment schedules, and assess financial risk. The security incident reported by Prosper Marketplace, Inc. to the California Attorney General highlights the escalating vulnerabilities facing digital financial platforms. In the fintech sector, breaches typically involve sophisticated cyberattacks targeting cloud storage environments, unauthorized access to customer databases, or vulnerabilities within third-party vendor integrations used for identity verification and payment processing. Threat actors frequently target financial institutions to exfiltrate vast repositories of customer records, leveraging automated tools to probe for misconfigurations or unpatched software vulnerabilities in the company's digital infrastructure. As a result of this exposure, consumers face severe risks regarding the compromise of their most private financial and identifying details. The exposed data sets typically include full names, Social Security numbers, dates of birth, banking account and routing numbers, income verification records, and detailed credit history information. Access to this combination of data provides malicious actors with the precise blueprint needed to execute financial account takeovers, apply for fraudulent loans in the victim's name, empty bank accounts, and establish synthetic identities that can permanently damage an individual's credit score and financial standing for years. Under federal and state law, including the Gramm-Leach-Bliley Act (GLBA) and California consumer protection statutes, financial institutions like Prosper Marketplace, Inc. are bound by rigorous legal obligations to maintain comprehensive administrative, physical, and technical safeguards to protect non-public personal information. When a breach of this magnitude occurs, it often demonstrates a failure to implement adequate encryption, multi-factor authentication, or timely security patch management. These statutory duties require companies handling sensitive financial data to maintain constant vigilance, and a security failure of this scale raises serious questions regarding whether the company met its legal standard of care. Receiving a data breach notification letter from Prosper Marketplace, Inc. serves as a formal acknowledgment by the company that your sensitive personal and financial data was compromised due to their inadequate security measures. Legally, this notice provides affected consumers with the standing required to participate in class action litigation aimed at holding the company accountable for its negligence. You do not need to wait until you experience actual financial theft or fraudulent charges to take legal action; the increased risk of future identity theft and the time and expense required to monitor your credit are actionable harms. Our firm evaluates these cases on a contingency fee basis, meaning you pay nothing out of pocket and owe no legal fees unless we successfully recover compensation on your behalf.

Quick Facts

State Filed
CA
Date Reported to AG
Dec 9, 2025
Date of Breach
Apr 29, 2025
Records Affected
Not disclosed
Status
Investigation Open
Last Updated
Oct 5, 2026
Data Types Exposed
Full NameSocial Security NumberDate of BirthFinancial Account NumberRouting NumberCredit Score InformationIncome and Employment RecordsMailing Address

Do You Qualify for Compensation?

You may have been affected by the Prosper Marketplace, Inc. data breach if:

  • You received a written data breach notification letter from Prosper Marketplace, Inc.
  • You are or were a customer, patient, or employee of Prosper Marketplace, Inc.
  • Your information was held by Prosper Marketplace, Inc. in CA
  • Your bank or payment card data was potentially exposed

Rights Under the Law

Common categories of compensation in data breach class actions

Lost Time & Remediation Costs

The hours spent responding to a data breach — canceling accounts, contacting credit bureaus, updating passwords, and investigating fraud — represent compensable economic harm in data breach litigation.

Identity Theft Protection Costs

Once your SSN is exposed, protection becomes an ongoing expense. Plaintiffs in data breach settlements have recovered costs for credit freezes, identity protection subscriptions, and time spent dealing with fraudulent accounts — sometimes covering multiple years of exposure.

Banking & Account Fees

Fees charged to close and reopen accounts, issue replacement cards, or dispute fraudulent transactions are recoverable in data breach litigation. So are the costs of overdrafts, late payments, and credit damage caused by unauthorized activity.

Emotional Distress

Data breach victims regularly report anxiety, loss of sleep, and ongoing fear of identity theft. These non-economic harms are cognizable injuries in data breach litigation, particularly in cases involving SSN or medical record exposure.

Note: an attorney general breach filing does not by itself establish a settlement fund, a payment amount, or a claim deadline. If an official settlement notice is later issued, rely on that notice for payment details and deadlines.

Applicable State Law

This breach was reported under the California Consumer Privacy Act (CCPA), which mandates notification and establishes your right to seek damages.

Frequently Asked Questions

Do I need proof that my data was misused to file a claim against Prosper Marketplace, Inc.?

No. Under California Consumer Privacy Act (CCPA) and federal law, the unauthorized exposure of your personal data — regardless of whether it has been actively misused — can be sufficient grounds for a claim. The breach itself is the injury.

How much does filing a claim cost?

Nothing. The Law Office of David S. Harris handles data breach cases on contingency — you pay zero upfront and owe nothing unless compensation is recovered.

My Social Security Number was exposed. What should I do right now?

Immediately place a free credit freeze at all three bureaus (Equifax, Experian, TransUnion). A freeze blocks new accounts from being opened in your name. Then file a complaint with the FTC at IdentityTheft.gov and contact our office — SSN exposure is one of the most serious breach types.

My financial account data was exposed. Can the bank recover my losses?

Banks may reverse fraudulent charges, but they are not obligated to compensate you for time lost, stress, or indirect damages. A class action claim against the breached company can recover those additional categories of harm.

Is it too late to file a claim?

Statutes of limitations for data breach claims vary by state but typically run 2–4 years. Depending on when you learned of the breach, you may still have time. Contact our office for a free eligibility review — there is no cost to find out.

What if Prosper Marketplace, Inc. offered me free credit monitoring after the breach?

Accepting free credit monitoring from Prosper Marketplace, Inc. does not waive your right to pursue legal action unless you signed a specific release waiving claims. In most cases, victims who accepted monitoring can still file.

Do I need to have received a notice letter to be eligible?

Not necessarily. Many data breach victims are never notified directly. If your personal information was held by Prosper Marketplace, Inc. during the relevant period, you may still qualify even without receiving a letter. A free eligibility review can confirm your status.

Filing Window Open

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This case file references a public filing made with the state filing in CA. This website is not affiliated with, endorsed by, or operated by any state government agency.

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