POLYMARKET CONFIRMS BREACH, REFUNDS STOLEN FUNDS

SECURITY DESK■ 1 MIN READ

THU, JUN 25, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Prediction market platform Polymarket disclosed a security breach where hackers stole user funds through a third-party vulnerability. The company announced it will refund affected users.

Polymarket, one of the largest prediction market platforms, confirmed that unauthorized access compromised user accounts and resulted in fund theft. The breach originated from a third-party vulnerability rather than Polymarket's own systems. The company did not immediately disclose the total amount stolen or the number of affected users. Polymarket stated it is actively working to reimburse customers who lost funds in the incident. This marks a significant security incident for the prediction market space, which has grown substantially in recent years. Prediction markets allow users to bet on the outcomes of events, from elections to sports. Polymarket has emerged as a major player in this sector. The platform has not yet provided a detailed timeline of when the breach occurred or how long it went undetected. Additional information about the third-party vulnerability and steps taken to prevent future incidents is expected.

■ SOURCES

► TechCrunch

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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POLYMARKET CONFIRMS BREACH, REFUNDS STOLEN FUNDS

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