Polymarket confirms third-party service provider was breached, stating it will fully compensate affected users.

On October 30, according to CoinDesk, prediction market Polymarket posted a statement on its status page confirming that one of its third-party service providers was compromised, affecting international site users, after several users previously reported on X that their account assets had been transferred without authorization.

Polymarket stated that it has identified and fixed the issue affecting the international site, referred the incident to relevant law enforcement authorities, and affected users will receive full compensation; platform trading remains suspended at present. CoinDesk confirmed that some user accounts holding balances on the international site have been emptied.

previously reported that Polymarket switched trading to a cancel-only mode due to the security incident, with the suspected attacker's address holding approximately $2.65 million in POL.