Wu Blockchain reports that multiple Polymarket users have reported unauthorized fund transfers, with losses totaling hundreds of thousands of dollars. Polymarket stated it has identified and fixed the issue affecting its international platform, confirming it was caused by a compromised third-party service provider. The platform has entered "cancel-only" mode and suspended relay operations, while also referring the incident to relevant law enforcement agencies. Polymarket has pledged to fully reimburse all affected users and has temporarily halted trading as a precautionary measure in an effort to restore platform operations. The platform previously reported a third-party vendor vulnerability that led to approximately $3 million in user funds being stolen, but at the time stated it had been fixed and affected users would receive full reimbursement.