Prosper Data Breach At A Glance
Companies Affected: Prosper Marketplace, Inc.; Prosper Funding, LLC; Prosper.com
Total Customers Affected: Approximately 17.6 million
Date of Breach: September 2, 2025
What Happened?
Reports claim that an alleged data breach may have exposed confidential information of 17.6 million current and former users of Prosper Marketplace, Inc., a company that provides personal loans and home equity lines of credit and offers a Prosper Credit Card. If you created an account or registered on Prosper.com, or received a loan, home equity line of credit, or credit card from Prosper, your data may have been compromised. We can help navigate the next steps to answer your questions.
For more information on the incident, read here:
- Have I Been Pwned: Prosper data breach impacts 17.6 million accounts – BleepingComputer.com
- Prosper data breach puts 17 million people at risk of identity theft – Malwarebytes Labs
What Personal Information Is at Issue?
Reports indicate that computer hackers may have obtained several types of confidential personal information from Prosper, including consumers’ names, government-issued IDs (social security numbers and passport numbers), employment status, credit status, income levels, dates of birth, physical addresses, IP addresses, and browser user-agent details.
What Are Data Breaches?
Data breaches occur when a malicious third party, such as a computer hacker, gains access to sensitive consumer data held by a business who was entrusted to protect it. Frequently, data breaches are the result of insufficient data security, allowing hackers to illegally gain access to the data and either misuse it themselves (e.g., for identity theft or fraud) or sell or trade that data with others, often on the “dark web.”
Where data breaches are the result of insufficient protections put in place by the business entrusted with the data, the business may be required to compensate the victims whose personal data was improperly accessed.
What are the Risks of Data Breaches?
Being the victim of a data breach can be a stressful and frightening experience, as it means that criminal actors may have access to personal information. Data breaches can place the victims at an increased risk of fraud or identity theft because their stolen data can be misused by criminal actors, often long after the breach itself. For example, where a username and password are disclosed as part of a data breach, bad actors might make use of that information to illegally access accounts.
In some cases, the information disclosed through a data breach can be profitable right away to criminals who may use stolen login information to commit fraud and identity theft. In other cases, the personal information disclosed is in turn bought and sold online, where it can be combined with data from other sources (including other data breaches.) In other words, it is often impossible to know the true risks and effects of a data breach until long after the breach has occurred, as criminals may be analyzing and aggregating the stolen data into comprehensive identity theft packages. This is why holding businesses accountable is important.
What Can I Do?
Unfortunately, any data disclosed as part of a data breach may have already become accessible to bad actors and may be repeatedly accessed, traded, bought, and sold by criminal actors online.
The first thing to do when discovering that you have been victimized in a data breach is to immediately change login information such as passwords, including creating a new and unique password for the affected account.
Once passwords have been updated to new, unique, and stronger passwords, an affected person should continue to monitor account activity and credit reports to ensure that their information has not been misused. Suspicious activity should be reported directly to the bank or card provider where the account is maintained. Enrolling in identity theft protection services may also offer protection, but data breach victims should still monitor accounts regularly to detect suspicious activity.
Victims of data breaches should also strongly consider taking action against the business that experienced, and may be responsible for, the breach. If you have been impacted by the alleged Prosper data breach, you can contact our team of attorneys today to receive a free case evaluation. If you are entitled to compensation, our attorneys will analyze your case and, if appropriate, pursue a claim on your behalf to seek the best possible compensation for your loss.
If you qualify, we can represent you on a contingent fee basis, meaning that it will not cost you anything up front for our legal services and litigation costs—instead, we will be paid only if we are successful in securing a positive recovery for you.
