Polymarket attack via a third-party provider: what users should watch now

The information provided in this article is for informational purposes only and does not constitute financial advice. Cryptocurrency investments carry a high degree of risk. Always conduct your own research.A compromised third-party provider enabled unauthorized withdrawals of around $2.65 million at Polymarket, and trading was temporarily switched to cancel-only. The company has promised full reimbursement, but the weak point lies in the access layers around the platform.Add as a preferred source on GoogleFollow on Google NewsPolymarket temporarily halted trading on its international platform on October 29, 2026, after users reported unauthorized withdrawals. The attack ran through an external service provider that gave the attackers a way into accounts. The platform's trading contracts themselves were not affected. The company reopened trading the same day and promised full reimbursement to everyone affected. For users in Germany, the incident shifts the question. The key issue is not whether a trading contract on the blockchain has been cleanly programmed. What matters more is how many outside services run on a trading site and what happens if one of them is taken over. What hap...