Polymarket temporarily suspended trading on its international platform after users reported funds being drained from their cryptocurrency accounts without approval. Analysis of suspect wallets indicates that attackers stole roughly $2.5 to $2.7 million across hundreds of transactions, affecting up to 700 user accounts. Investigations by security firms like Hudson Rock pointed the breach to a compromised third-party website monitoring service, DebugBear, which allegedly injected malicious code to target active trading sessions. Polymarket quickly switched its exchange to cancel-only mode, halted relayer actions, and confirmed it had fixed the vulnerability before referring the case to law enforcement. The company assured the community that all affected traders will be fully reimbursed and made whole for their losses.

Full report : Prediction market suspends international exchange operations following a frontend exploit linked to monitoring service DebugBear that drained up to $2.7 million.