At the Web3.0 Cloud Day Singapore 2022 event, Tommy Deng, executive director of Beosin, said that according to statistics, $3.7 billion worth of assets on the blockchain were hacked or stolen in 2022, of which 40% were due to vulnerabilities in smart contracts and 40% were due to private key leaks; from the perspective of contract type, 70% of the stolen assets were related to DeFi and cross-chain bridges. (Planet Daily)