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

Photograph: Michael Nagle/Getty Images

Trading has resumed on Polymarket’s flagship international platform after a hack that drained money from the wallets of some traders.

A third-party vendor based in the United Kingdom was breached, not the prediction market ’s website itself. Law enforcement in the UK have been notified of the incident, the company said. Trading was initially paused while the company investigated for several hours.

On X, prominent traders complained that they had lost money; blockchain analytics firm Bubblemaps reported that around 700 users appeared to have been affected, with approximately $2.7 million stolen.…