Attacker mints $1 billion Polkadot tokens on Ethereum, ends up stealing just $250,000
CoinDesk·2h ago·Fear
What Happened
An attacker exploited Hyperbridge's cross-chain gateway on Sunday, minting 1 billion Polkadot tokens valued at $1.19 billion on Ethereum. However, limited liquidity in the bridged DOT pool restricted profits to approximately $237,000 in ether. The vulnerability involved forged cross-chain messages bypassing validation checks in the EthereumHost contract. Polkadot's core network remained unaffected. The incident highlights ongoing bridge security risks.
Key Entities
HyperbridgePolkadotEthereumEthereumHost contractTokenGatewayCertiKUniswap V4Odos Router V3