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Prosper Funding LLC Data Breach 

In October 2025, our data breach attorneys filed a lawsuit against financial services company Prosper Funding LLC, alleging it failed to implement reasonable or adequate data security measures, which led to hackers stealing sensitive and confidential personal identifying information, including full names in combination with Social Security numbers and even bank account and credit card numbers. The lawsuit seeks compensation for individuals harmed by the data breach. In February 2026, Gibbs Mura LLP Partner David Berger and James Pizzirusso of Hausfeld LLP were appointed lead counsel for Plaintiffs in the consolidated class action lawsuit, In re: Prosper Funding, LLC Data Breach Litigation.

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Learn the Facts

About the Prosper Funding Data Breach Lawsuit:

Prosper Funding markets itself as a peer-to-peer lender that connects loan seekers and investors. It also offers credit cards and services existing loans made by other financial services companies. To use Prosper’s financial services or to invest in them, consumers were required to provide the company with their sensitive and non-public PII, according to the lawsuit. In many cases, Prosper obtained this information even without the consumers’ knowledge and held onto it even after the lender-customer relationship ended.

According to Prosper, it discovered unauthorized activity on its systems on September 1, 2025, and discovered evidence that between June and August 2025, data containing personal information was obtained through queries on company databases that store customer and applicant data.

Prosper has stated that the impacted data includes:

  • 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

Who Can Benefit from the Prosper Funding Data Breach Class Action?

Plaintiffs seek to represent a class of all individuals in the United States whose PII was compromised in the Data Breach. The Plaintiff and class members currently include current and former Prosper customers whose information was compromised in the 2025 Data Breach.

2026 Case Status:

In December 2025, all of the class action suits filed in the Northern District of California were consolidated into a single proceeding, In re: Prosper Funding, LLC Data Breach Litigation. On February 13, 2026, the Court appointed Gibbs Mura LLP Partner David Berger and James Pizzirusso of Hausfeld LLP as lead counsel for Plaintiffs. The Consolidated Amended Complaint is due on March 30, 2026.

Our Attorneys’ Leadership in Data Breach Litigation

Gibbs Mura partner David Berger has represented consumers in some of the largest and most influential privacy and data breach cases in the country and has repeatedly obtained record-setting settlements for his clients. David has been named as Class Counsel in dozens of state and federal class actions. David recently served as court-appointed co-lead counsel for over 85 million MGM customers whose information was stolen in data breaches. He frequently speaks at conferences on data breach cases and other class action topics. David is a former Chair of the American Association for Justice’s Consumer Privacy and Data Breach Litigation Group.

David Berger also played a pivotal role in achieving a historic $1.5 billion settlement from Equifax in 2019, on behalf of 147 million consumers whose Social Security numbers and other private data were exposed in a breach. Described by the court as “the largest and most comprehensive recovery in a data breach in U.S. history by several orders of magnitude,” the settlement also required Equifax to spend over $1 billion in data security technology and to make comprehensive security reforms. Previously, Mr. Berger and his team negotiated a $115 million settlement in the Anthem data breach, the largest data breach settlement at the time, after approximately 80 million personal records were compromised in a massive data breach of health insurance giant.

About Us

Gibbs Law Group is a nationwide leader in class action lawsuits seeking to holding companies accountable for large-scale data breaches. It has prosecuted some of the largest privacy cases throughout the country, and the firm’s attorneys have received numerous awards for their privacy and data breach work including “Cybersecurity & Privacy MVP,” “Top Cybersecurity and Privacy Attorneys Under 40,” and “Titans of the Plaintiffs Bar.”

Daily Journal's Clay Awards 2023 - California Lawyer
Law360 Titans of the Plaintiffs Bar
Chambers Leading Firm USA 2025
Daily Journal Top Plaintiff Lawyers 2023

The Prosper Data Breach Attorneys

David Berger
David Berger

David represents consumers in data breach, privacy, and financial services litigation. He has prosecuted some of the largest privacy cases nationwide.

Rosemary Rivas
Rosemary Rivas

Rosemary is devoted to obtaining justice for consumers in lawsuits involving claims of false advertising, defective products, and privacy violations.

Rosanne Mah
Rosanne Mah

Rosanne represents consumers in complex class action cases involving deceptive and misleading practices.

Jane Farrell
Jane Farrell

Jane is passionate about telling clients’ stories and holding employers and corporations accountable.

Sadie Hillier

Sadie is passionate about protecting clients' rights and holding corporations accountable.

Jennifer Sun
Jennifer Sun

Jennifer advocates on behalf of consumers primarily in data privacy and data breach class action lawsuits.

Kate Walford
Kate Walford

Kate advocates on behalf of consumers in class action and complex litigation, with a particular focus on data privacy and data breach cases.

Jeff Kosbie
Jeff Kosbie

Jeff represents workers and consumers in complex class actions involving data breaches and privacy, employment law, and other corporate misconduct.

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