According to CoinDesk, IoTeX proposed a "white hat" solution to the attacker regarding the February 21 ioTube cross-chain bridge incident: if approximately $4.4 million of stolen funds are returned within 48 hours, a 10% bounty (about $440,000) will be paid, and CEO Raullen Chai stated that no legal action will be pursued; IoTeX said the cause of the incident was due to the Ethereum validator owner private key leak, which led to unauthorized control of the bridge contract. This is considered an operational security issue rather than a vulnerability in L1 or smart contracts. They also mentioned that they have traced the funds across chains, identified related Bitcoin addresses holding about 66.6 BTC, and are working on upgrading Mainnet v2.3.4 and introducing a default blacklist address; after the incident, IOTX temporarily dropped about 22%.
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According to CoinDesk, IoTeX proposed a "white hat" solution to the attacker regarding the February 21 ioTube cross-chain bridge incident: if approximately $4.4 million of stolen funds are returned within 48 hours, a 10% bounty (about $440,000) will be paid, and CEO Raullen Chai stated that no legal action will be pursued; IoTeX said the cause of the incident was due to the Ethereum validator owner private key leak, which led to unauthorized control of the bridge contract. This is considered an operational security issue rather than a vulnerability in L1 or smart contracts. They also mentioned that they have traced the funds across chains, identified related Bitcoin addresses holding about 66.6 BTC, and are working on upgrading Mainnet v2.3.4 and introducing a default blacklist address; after the incident, IOTX temporarily dropped about 22%.