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Prosper data breach (2025)

In September 2025, Prosper announced that it had detected unauthorised access to their systems, which resulted in the exposure of customer and applicant information. The data breach impacted 17.6M unique email addresses, along with other customer information, including US Social Security numbers.

Victim
Prosper
records
17.6M
SectorLegal

Imported from Have I Been Pwned — pending editorial review and translation to French. The summary below is machine-extracted; consult the source for details.

In 2025-09-01, Prosper was affected by a data breach. Approximately 17,605,276 accounts were exposed. In September 2025, Prosper announced that it had detected unauthorised access to their systems, which resulted in the exposure of customer and applicant information. The data breach impacted 17.6M unique email addresses, along with other customer information, including US Social Security numbers.

Sources

  1. haveibeenpwned.comhttps://haveibeenpwned.com/PwnedWebsites#Prosper
  2. prosper.comhttps://prosper.com

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