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#CryptoMarketsDipSlightly
The attacker used a vulnerability in the Hyperbridge gateway contract for Ethereum to create 1 billion linked Polkadot tokens and sell them for approximately $237,000 in Ether.
The exploit, which did not affect the main Polkadot network or the native DOT token, used a vulnerability in the cross-chain message verification mechanism to obtain administrative control of the linked token contract.
The attacker’s profit was limited by low liquidity in the Ethereum DOT pool; however, security firms warn that similar bridge vulnerabilities on pools with deep liquidity or assets with higher value could result in significantly greater losses.