Prosper Marketplace Data Breach Lawsuit

Prosper Marketplace, Inc., a prominent financial services company based in San Francisco, California, recently disclosed a significant data breach affecting over one million individuals. The breach has compromised sensitive personal and financial information, raising concerns about cybersecurity and consumer protection. Affected individuals may be entitled to compensation through a class action lawsuit. This article provides details about the breach and the steps impacted individuals can take.

Prosper Marketplace Data Breach Investigation

On December 10, 2025, Prosper Marketplace’s internal security teams detected suspicious activity within the company’s network. This triggered an immediate investigation, and the company engaged cybersecurity experts to assess the scope of the breach. Early findings indicated that cybercriminals exploited vulnerabilities in Prosper’s digital infrastructure to gain unauthorized access to personal records and financial details of approximately 1,161,581 individuals.

The breach exposed highly sensitive information, including names, Social Security numbers, government-issued ID numbers, financial account details, and dates of birth. Prosper Marketplace has since initiated a comprehensive response plan, offering free credit monitoring services to affected individuals and providing a dedicated customer support line to address concerns.

The company also set up a special website to offer regular updates and guidance to those impacted, explaining the steps they can take to protect themselves. Prosper’s leadership has expressed regret over the breach and committed to strengthening their cybersecurity measures to prevent future incidents. However, the breach raises serious questions about the current state of cybersecurity and its potential impact on consumer trust.

When Did This Breach Occur?

The data breach was detected on December 10, 2025, and investigations revealed that unauthorized access had occurred in the preceding days. The company began notifying affected individuals shortly thereafter, ensuring that impacted customers were informed about the breach.

What Information Was Breached?

The data breach exposed a variety of sensitive personal and financial information, including:

• Full Name

• Social Security Number

• Government-issued ID number (e.g., passport, state ID card)

• Financial Information (e.g., account numbers, credit or debit card numbers)

• Date of Birth

This type of information can be used for identity theft, financial fraud, and other malicious activities, making it imperative for affected individuals to take immediate action to protect their data.

What You Can Do

If you were impacted by the Prosper Marketplace data breach, it’s crucial to act quickly to minimize potential risks. Here are the steps you can take:

1. Monitor your accounts: Regularly check your bank and credit card statements for unauthorized transactions. Keep an eye on your credit reports for any signs of unusual activity.

2. Place a fraud alert or credit freeze: Consider placing a fraud alert or freezing your credit with the major credit bureaus to prevent unauthorized access to your financial accounts.

3. Sign up for credit monitoring: Prosper Marketplace is offering free credit monitoring services. Be sure to enroll to keep track of your credit activity and receive alerts about any potential identity theft.

4. Update your passwords: Change passwords and security settings on your financial accounts and online platforms, especially if you reuse passwords across different sites.

5. Stay informed and protect your data: Prosper Marketplace has set up a website with regular updates and advice for affected individuals. Stay updated on what actions you can take to protect yourself further.

In addition to these actions, being part of a collective legal effort can provide stronger protection and potential restitution. Affected individuals are encouraged to explore their legal options and stay informed about the ongoing developments of this breach.

File a Data Breach Lawsuit Against Prosper Marketplace

If you have received a notification about the Prosper Marketplace, Inc. data breach or believe your information was compromised, you may be eligible to seek compensation through a lawsuit. Data breaches like this can cause financial loss, emotional distress, and identity theft, and legal action may be necessary to ensure your concerns are addressed.

Don’t stand alone—contact Class Action U for a free consultation to discuss your legal options. We can connect you with experienced lawyers who specialize in data breach class action lawsuits. Filing a lawsuit can help ensure that Prosper Marketplace is held accountable for their security failures. Fill out our quick, easy, secure form today to see if you have a case and learn how we can help you pursue compensation.