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Latest / California / November 2018

Prosper Marketplace, Inc.

Prosper Marketplace, Inc. notified California AG on Nov 26, 2018 of a data breach, which occurred on Oct 3, 2018.

All 4 filings by Prosper Marketplace, Inc., state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Prosper Marketplace, Inc.
Source
California AG · source record
Date reported
Nov 26, 2018
Date(s) of breach
Wednesday, October 3, 2018
Residents affected
Not published by this source
Data exposed
Not stated in the source listing
Notice letter
Not available
Days to notice
54 days from the end of the breach window (Oct 3, 2018, no discovery date in the letter) to the California record (Nov 26, 2018). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally
2026-10-30 16:14 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 16:14 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by Prosper Marketplace, Inc.

OrganizationSourceStateReportedResidents affectedData exposed
Prosper Marketplace, Inc Texas AG TX Dec 10, 2025 1,161,581 Social Security numberDriver's license / state IDPassport numberFinancial / bank account+2
Prosper Marketplace, Inc. Oregon DOJ OR Dec 9, 2025 13,076,476 Not stated
Prosper Marketplace, Inc. California AG CA Dec 9, 2025 Not published In the letter (PDF)

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.