Polymarket suspended international trading after attackers accessed user accounts and drained funds. The prediction market confirmed the breach affected its flagship platform. Trading has since resumed.
The company said an unnamed third-party provider was compromised. That outside service enabled the attackers to reach Polymarket accounts. Polymarket has not disclosed the provider’s identity.
Affected traders lost money during the halt. Polymarket says those users will be made whole. The company has not detailed how or when reimbursements will occur.
The incident highlights risks tied to third-party vendors. Outside providers often hold access to account systems and payment rails. A single compromise can expose an entire platform.
Polymarket has not disclosed the number of affected accounts. The total value of drained funds also remains unknown. The company has not commented on the attackers’ identity.
Trading has resumed on the international platform. Users can again place and settle positions. The company says it has addressed the vulnerability.
Prediction markets let users trade on real-world outcomes. Polymarket has grown into a major venue for event-based contracts. Security incidents at such platforms can shake user confidence.
Users are advised to review account activity and monitor for unauthorized access. Polymarket says it is cooperating with investigators. Further details have not been released.
