Prosper Marketplace, Inc · Breach Census

Confirmed incident

Filed in TX, WA, DE and IA

The same incident was filed separately with 4 jurisdictions within a few days of each other (TX, WA, DE and IA) — shown here as one incident.

December 9, 2025
Reported to regulator Regulator
DE AG breach notification: 48,397 Delaware residents affected
^source
December 9, 2025
Reported to regulator Regulator
IA AG breach notification: an unknown number of Iowa residents affected
^source
December 9, 2025
Reported to regulator Regulator
WA AG breach notification: 249,848 Washington residents affected
^source
December 10, 2025
Reported to regulator Regulator
TX AG breach notification: 1,161,581 Texas residents affected
^source

Possible litigation — multiple candidate dockets found, not yet resolved to a single case.

What a Texas notice means

Required under Tex. Bus. & Com. Code §521.053. Notice to the Attorney General is required when a breach affects at least 250 Texas residents.

Note: the published count is a total, not limited to Texas residents.

What a Washington notice means

Required under RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

Note: the count is Washington residents only, not a total.