Polymarket Suspends Trading Following Major Security Breach and User Losses

10/30/2026

Trading on its international platform was halted for nearly an hour, but resumed on Thursday afternoon.

10/30/2026

Binance is investigating a hack potentially worth billions, while Polymarket said it would reimburse users affected by a separate security breach.

10/29/2026

The company says an unnamed third-party provider was compromised. Trading has resumed, and Polymarket says affected traders will be made whole.

10/29/2026

Polymarket said one of its third-party providers was breached after users reported seeing their accounts drained.

10/29/2026

The prediction market halted trading for roughly an hour Thursday after a software vendor was compromised.

10/29/2026

The prediction markets platform halted trading on Thursday after it reported one of its third party providers had been compromised.

10/29/2026

Polymarket stopped trading on its international exchange on Thursday after it said that a third-party software provider was compromised.

10/29/2026

Polymarket suspended trading on its prediction markets app outside the U.S. after one of the company’s vendors was "compromised" in an apparent hacking attempt that some customers said drained...

10/29/2026

Polymarket restricted trading and paused relayer actions as users report funds leaving their accounts. A suspected attacker wallet holds about $2.65 million in POL, per Arkham data.

10/29/2026

Users and on-chain sleuths have reported that the losses exceed $2.6 million as of now.

10/29/2026

Traders who lost money on the incident will be "made whole," the prediction-markets platform said.