Wu learned that, according to Blockaid monitoring, BitTorrent's BTTC cross-chain bridge on Ethereum appears to have been attacked, with approximately $13.3 million in assets transferred out, including about 7,285 ETH and various ERC-20 assets. Blockaid stated that after the BTTC cross-chain bridge's admin Safe executed a privileged proxy upgrade, the attacker obtained the CFO_ROLE permission of the upgraded RootChainManager contract and called the withdrawAll(address[]) function to transfer ETH and ERC-20 assets out of the bridge's Predicate contract.

BTT-1.10%
ETH-1.42%
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