Jun 25, 2026
Polymarket Hack: $3M Drained in Supply-Chain Frontend Attack
Securitycrypto hackDeFi securityFrontend ExploitpolygonPolymarketPolymarket HackpUSDSupply Chain Attack
TLDR: Polymarket hack stemmed from a compromised third-party vendor that injected malicious JavaScript into the platform’s frontend. Over 11 wallets lost PUSD on Polygon; stolen funds were bridged to Ethereum and swapped into 1,893 ETH. Polymarket confirmed the breach within 15 minutes of the first public report and removed the affected dependency. Polymarket pledged full [...]
The post Polymarket Hack: $3M Drained in Supply-Chain Frontend Attack appeared first on Blockonomi.
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