Polymarket Loses $2.7 Million After Third-Party Script Hijack Turns Traders' Positions Into Attacker Profit
RedSide Security November 01, 2026 Cybersecurity 10 views
Attackers replaced a third-party page-speed script on Polymarket's website to liquidate signed-in traders' positions, prompting the platform to refund about $2.7 million to 726 affected wallets.
incident response
supply chain attack
web security
third-party scripts
Polymarket
crypto theft
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