The transfer of imBTC contract is suspended due to the reentry attack vulnerability of ERC-777 token in Uniswap

The decentralized trading platform Tokenlon announced the suspension of the transfer function of the imBTC contract, because an attacker previously discovered a reentry vulnerability in the Uniswap liquidity pool contract through ERC-777, which circulated arbitrage on the ETH-imBTC pool, causing losses to the liquid pool provider . The Tokenlon team said that the imBTC contract and custodial BTC will not be affected, but for the sake of caution, the imBTC contract transfer function is suspended, and the time for imBTC to restart is still being evaluated. imBTC is a 1: 1 ERC-20 token that anchors Bitcoin, injecting new vitality into the Ethereum ecosystem by anchoring Bitcoin.