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Data Breach at Prosper Marketplace Affects 13.1 Million Individuals

Data Breach at Prosper Marketplace Affects 13.1 Million Individuals

First seen 16 Dec 2025, 10:57 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

Prosper Marketplace confirmed a cybersecurity incident on September 1, 2025, affecting 13.1 million people. The breach exposed personal information, prompting the company to send notification letters to those impacted. The incident is part of a larger trend of cybersecurity risks in the fintech and credit reporting sectors.

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