SAN FRANCISCO -- Prosper Marketplace, Inc., a prominent player in the fintech industry, announced on December 9, 2025, that they have sent notification letters to individuals whose personal data was affected by a cybersecurity incident earlier this year.
This proactive communication was intended for those who may not have up-to-date contact information in Prosper's records. "We launched a dedicated website on September 17, 2025, to publicly report the incident," said a company representative.
"We launched a dedicated website on September 17, 2025, to publicly report the incident,"
The incident itself unfolded on September 1, 2025, when Prosper identified unauthorized activities within its systems. "We acted quickly to stop the activity and enhance our security measures," the representative continued. After the discovery, Prosper enlisted the help of a leading cybersecurity firm to delve deeper into the breach's nature and implications.
"We acted quickly to stop the activity and enhance our security measures,"
Prosper also reached out to law enforcement, offering full cooperation in their investigation. Despite these proactive measures, data extracted from company databases revealed that personal information was accessed between June and August 2025.
Fortunately, Prosper confirmed that there was no evidence of unauthorized access to customer accounts or funds. The company reassured customers that its operations continued without interruption. "We continuously monitor accounts, which have strong safeguards in place to protect your fund," the spokesperson asserted.
"We continuously monitor accounts, which have strong safeguards in place to protect your fund,"
By the Numbers
By the Numbers
By the Numbers
The investigation concluded on November 26, 2025, pinpointing the compromised data that included sensitive personal information such as names, Social Security Numbers, bank account details, and more. "We identified a range of personal information that could potentially impact those affected," said the representative.
Impact and Legacy
"We identified a range of personal information that could potentially impact those affected,"
Impact and Legacy
In response to the breach, Prosper is notifying impacted individuals as required, via email or letters through the U.S. Postal Service where applicable. "We are offering these individuals two years of complimentary credit monitoring and identity restoration services through our preferred third-party vendor, Experian," the spokesperson noted.
"We are offering these individuals two years of complimentary credit monitoring and identity restoration services through our preferred third-party vendor, Experian,"
The written notifications include detailed instructions on how to enroll in these services, as well as contact information for a dedicated call center established to assist individuals with any queries. The individual notifications were initiated on December 9, 2025.
In light of this event, Prosper has also reviewed and enhanced its security protocols. "Prior to the incident, we had a number of security measures in place, but we have taken further steps to deploy additional safeguards onto our systems," the representative stated. The company emphasized its commitment to continuously improve its cybersecurity practices.
"Prior to the incident, we had a number of security measures in place, but we have taken further steps to deploy additional safeguards onto our systems,"
To aid in protecting personal information, Prosper has urged individuals to take proactive steps, including enrolling in the credit monitoring and identity restoration services being offered at no cost. Additionally, the company encourages vigilant monitoring of account statements and credit histories for any signs of unauthorized transactions.
Specialized support is available for individuals who have questions about the cybersecurity incident or the services provided in response. Prosper has set up a dedicated call center to address inquiries. "If you have any questions, please call the call center at 1-833-918-9464 during business hours," the representative advised.
"If you have any questions, please call the call center at 1-833-918-9464 during business hours,"
Founded in 2005, Prosper has evolved the landscape of personal finance through peer-to-peer lending and continues to offer financial products aimed at improving customer financial well-being. As of now, Prosper has assisted over 2 million customers in navigating their financial paths.
Looking Ahead
As the company works to rectify this event and reinforce its cybersecurity measures, the incident serves as a crucial reminder of the importance of data protection in the fintech space. The financial technology sector, known for its innovations, must remain vigilant to prevent similar occurrences in the future.