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Polymarket resumes trading after third-party security breach, to reimburse users
Polymarket said it will reimburse affected traders after malicious code drained wallets and forced a brief trading halt on its international platform.
On Thursday, Polymarket halted trading on its international platform for nearly an hour after malicious code served through its website caused users to report losing more than $2 million.
DebugBear, a UK-based analytics company, confirmed it is aware of the 'ongoing security incident' after its code was exploited to gather trading credentials from user local storage.
Blockchain analysis group Arkham reported some $2.65 million in cryptocurrencies were siphoned from the platform before trading resumed at 3 p.m. ET.
Polymarket pledged to 'make whole' any impacted users and has referred the matter to relevant law enforcement, the company said.
Head of global intelligence and investigations Shana Bautista noted the company is investigating 'dozens' of issues related to the U.S. midterms as prediction markets face continued insider-trading threats.