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Polymarket temporarily suspends trading on international platform due to security incident

Security incident linked to performance-monitoring tool spurred platform to halt trading for about an hour Polymarket temporarily halted trading on its international platform on Thursday because of a security incident that compromised a third-party provider, the company said.

✦ Extractive summary — built from the sources' own reporting•From 2 sources•1 min read•Updated October 29, 2026, 11:20 PM UTC
Key points
  • The company has promised to fully reimburse any affected traders.

Trading has resumed, and Polymarket says affected traders will be made whole.

Trading was paused for about an hour and resumed on Thursday afternoon.

How this summary was made: extractive summary — built from the sources' own reporting. It is drawn only from the reporting of the sources listed below — read the originals for full detail. How we summarize →

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Every article behind this summary — 2 articles from 2 outlets