Hyperbridge Cross-Chain Gateway Exploited; Attacker Mints 1 Billion Fake DOT, Dumps for $237,000

On April 13, Hyperbridge's cross-chain gateway contract on Ethereum was exploited, as flagged by CertiK and reported by BlockBeats. An attacker reportedly forged messages to gain administrative control over the bridged Polkadot (DOT) token contract, subsequently minting 1 billion fake DOT. These fraudulent tokens were then sold, generating approximately $237,000 in profit. The substantial sell pressure caused the token's price to plummet from $1.22 to near zero, with further liquidation hindered by thin on-chain liquidity. This incident specifically affected the bridged DOT asset on Ethereum, not the native Polkadot network. As of the report, neither Hyperbridge nor the Polkadot team has issued an official statement regarding the exploit.