On January 10, according to Scam Sniffer monitoring, a user lost 143.45 ETH (approximately $460,800) yesterday due to transaction simulation fraud. Transaction simulation is a feature in Web3 wallets that allows users to view the expected results of a transaction before signing, aimed at enhancing transparency and user experience. However, attackers exploited the delay between transaction simulation and execution by creating phishing websites to immediately alter on-chain status after the transaction was submitted.