PANews reported on March 7 that according to a warning from the SlowMist security team, 1inch discovered a vulnerability in the Fusion v1 parser smart contract . Although user funds were not affected, some users of this version of the parser were attacked.

SlowMist analysis shows that the incident resulted in a loss of approximately 2.4 million USDC and 1,276 WETH, totaling more than 5 million US dollars.

According to Yu Xian, the founder of SlowMist, this incident did not directly affect ordinary users , but the parser using Fusion v1 (the role that processes Fusion Swap orders) was severely impacted.