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

Polymarket is a decentralized prediction market, so its trading rails and wallet controls are part of the product itself rather than a separate brokerage layer. A cancel-only restriction changes how users interact with open positions because it preserves exits on standing orders while stopping fresh exposure. The episode lands at a time when users are already expected to manage their own wallet security on-chain.

For traders on Polymarket, the immediate effect is that they could not place new buy or sell orders while the platform stayed open for order cancellation. That shifts activity from active trading to damage control and leaves anyone trying to adjust a market view waiting for normal access to return. The reported $800,000 drain also shows how large balances in connected wallets can become a direct operational risk.

Decentralized venues promise open access, but an incident like this puts security and continuity ahead of normal market function. Pausing a relayer shows how much of the user experience still depends on infrastructure that can be switched off when something looks wrong. The trade-off is visible: the same architecture that reduces gatekeeping can also make operational interruptions harder to absorb.

What is not yet clear is the full scope of the wallet drains, whether other users were affected, and how long the cancel-only restriction will remain in place. The next useful detail would be a platform update on the relayer pause and the status of any affected accounts. Until then, the open question is how Polymarket will restore normal trading while keeping the same wallets and orders safe.

Total crypto marketall crypto assets combined no single asset in the event: read against the whole market

The move was larger before the first headline than after. That is an observation, not an explanation: the market also moves on things nobody publishes.