Some Polymarket user funds stolen, matter referred to UK authorities

Some users of prediction market platform Polymarket’s international exchange had funds stolen from their accounts due to a hack an unnamed third-party provider.

Polymarket has contacted law enforcement and pledged to reimburse any trader impacted. It’s unclear how many users were impacted. The U.S. platform was not comprimised.

Traders first reported on social media platforms that they were seeing unauthorized withdrawals from their accounts on Thursday afternoon. In response, the company halted trading on its international platform.

Polymarket said that it has fixed the issue on its end, and that trading resumed at 3:00 p.m. ET.

A Polymarket spokesperson said it has referred the matter to U.K. law enforcement, as that is the country of operation for the third-party provider.

Polymarket’s international prediction market exchange operates as a decentralized finance platform on the polygon blockchain and is not regulated in the U.S.

The disruption comes just days before both the company’s international and U.S. exchanges are expected to see heightened volumes during the U.S. midterm elections on Nov. 3.

Back in June, Polymarket said a third party vendor had been “compromised” and said it would refund affected users.

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