Our data breach attorneys filed a consolidated class action lawsuit against Prosper Funding LLC, a financial services company, 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 combintion 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.
Learn the Facts
About the Prosper 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. As a requirement to use Prosper’s financial services or to invest in them, consumers provided the company with their sensitive and non-public personally identifiable information (PII), according to the lawsuit. In many cases, Prosper obtained this information 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 Data Breach Class Action?
Plaintiffs seek to represent a class of all individuals in the United States whose PII was compromised in the Prosper data breach. The Plaintiff and class members currently include current and former Prosper customers whose information was compromised in the 2025 data breach.
Prosper Data Breach Lawsuit 2026 Case Status:
In December 2025, the Court consolidated all of the class action suits filed in the Northern District of California into a single proceeding. On February 13, 2026, the Court appointed Gibbs Mura LLP Partner David Berger and James Pizzirusso of Hausfeld LLP as lead counsel for Plaintiffs. On March 30, 2026, plaintiffs filed a consolidated amended complaint.
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 100 million MGM customers who had information 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 Mura, A 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.”
