IoTeX stated that its cross-chain bridge ioTube was attacked on February 21, with the vulnerability limited to the Ethereum side validator contract. The attacker maliciously upgraded the contract to mint 410 million CIOTX tokens and transferred approximately $4.4 million in bridge reserve assets. The official said that IoTeX L1 mainnet and user on-chain assets were not affected. Most of the minted tokens have been locked or frozen, with about 0.4% at risk; ioTube has been suspended, and compensation and audit arrangements will be announced separately.

IOTX3.5%
ETH-4.93%
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