Polymarket restricts trading to cancel-only mode amid wallet drain reports

The prediction market paused new trades and relayer actions as unconfirmed reports of drained wallets and a compromised frontend spread on social media Polymarket has put its trading floor on lockdown. On October 29, 2026, the prediction market restricted trading to cancel-only mode and paused relayer actions after unconfirmed reports of drained wallets and a possibly compromised frontend. Cancel-only mode works the way it sounds. Users can pull existing orders, but nobody can place new ones. Users were warned not to connect wallets or sign transactions while the situation develops.