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Case file

Case File: PROSPER MARKETPLACE, INC. Data Breach

This file collects the dated facts on record for the PROSPER MARKETPLACE, INC. incident. The state report is dated September 1, 2025.

Timeline

  1. September 1, 2025Report filed in IllinoisDate the notice was lodged with the Illinois Attorney General.

Case facts

Filing state
Illinois
Date reported
September 1, 2025
Receiving office
Illinois Attorney General

Case notes

PROSPER MARKETPLACE, INC. has filed a public notice regarding a data breach, according to records submitted on September 1, 2025. The filing indicates that an unspecified security incident occurred, potentially compromising personal information held by the company.

Specific details regarding the nature of the breach or the precise types of information involved were not elaborated upon in the public filing. PROSPER MARKETPLACE, INC. has indicated that an investigation into the incident is currently underway.

When personal information is involved in a security incident, individuals are generally advised to take proactive steps to protect themselves. While the exact scope of this particular incident remains under investigation, recipients of a notification letter should carefully review it for any specific guidance provided by PROSPER MARKETPLACE, INC.

General protective measures often include monitoring financial and other personal accounts for suspicious activity, exercising caution with unsolicited communications, and considering placing a fraud alert or security freeze on credit reports. These actions can help mitigate potential risks associated with the exposure of personal information.

This documentation is based on public records filed with regulators. Individuals seeking more specific information or direct guidance regarding their personal situation should refer to official correspondence from PROSPER MARKETPLACE, INC. concerning this incident.

Questions about this case file

Where does the PROSPER MARKETPLACE, INC. case file come from?
Every entry is taken from the breach report PROSPER MARKETPLACE, INC. lodged with the Illinois Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.
Illinois data breaches

Filing source: Illinois Attorney General