WSJ · 2026-10-29 21:25 UTC

Hackers Swipe Millions From Polymarket Users in Latest Security Breach

Polymarket paused trading after users reported their accounts were drained of funds in a security breach. The breach was caused by a security flaw in DebugBear, a performance-monitoring vendor used on Polymarket's website. Polymarket said affected traders will be 'made whole' and has referred the issue to U.K. law enforcement.

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