Polymarket is facing scrutiny over its decision to allow betting on war, with some reports indicating that suspicious accounts and alleged insiders have made significant profits from correct predictions. The company has defended its decision, describing it as "invaluable", while regulators in various jurisdictions are taking action, with some states attempting to ban prediction markets and others launching investigations. The total value of bets on the war is reported to be at least $529 million, with one analysis suggesting it may be as high as $2 billion.