Report: Stolen debit cards used to launder money through Polymarket bets
The Wall Street Journal reports that fraudsters exploited Polymarket by placing wagers with stolen debit card information, then withdrawing winnings into accounts they controlled. A payment processor working with Polymarket flagged the scheme as early as February, rejecting over 80 percent of incoming transactions as fraudulent — far above the roughly 1 percent industry norm — with attempted fraud totaling at least $10 million.