Polymarket Halts International Trading Amid Third-Party Security Breach

The prediction market platform Polymarket briefly suspended operations on its international site on Thursday following a security breach that compromised an external vendor. The temporary halt lasted for approximately one hour before regular operations resumed on Thursday afternoon. Company representatives stated that the platform was locked down as a precaution after management detected and resolved the technical vulnerability.

Following the resumption of services, the organization took to social media to confirm that every impacted user would receive a complete refund. Management noted that the incident was formally reported to law enforcement authorities in the United Kingdom for further investigation. Independent reports have connected the origin of the security failure to DebugBear, a British enterprise specializing in website performance oversight.

Polymarket temporarily halted international trading after a security incident and promised full refunds to affected users.

During Thursday afternoon, the website belonging to the performance-monitoring vendor remained inaccessible. The UK-based firm published a social media statement acknowledging that it was dealing with an active security event and urged customers utilizing a specific product to delete the associated embed code from their online pages. The vendor did not immediately reply to inquiries seeking additional information.

It remains undetermined how many platform users experienced losses or how deeply the breach impacted overall operations. Management reiterated its commitment to financial restitution, assuring the public that every individual harmed by the disruption would be fully compensated for their troubles.