Wu learned that according to SlowMist monitoring, suspicious transactions related to 1 inch were discovered on March 5th. Hackers exploited vulnerabilities in the old version of Fusion v1 smart contract, resulting in losses of over 2.4 million USDC and 1276 WETH, totaling over 5 million USD. The 1inch team stated that the vulnerability only affects parsers using Fusion v1, and user funds are not at risk. Measures are being taken to continuously monitor the security situation.