PANews reported on February 12 that in response to the attack on zkLend where more than $9 million was stolen, SlowMist released an analysis on the X platform saying that the core reason for the attack was the safeMath library used in the market contract. When performing division calculations, direct division was used, resulting in a rounding down vulnerability when calculating the actual number of zTokens that need to be destroyed during withdrawal operations. Attackers may use this vulnerability to illegally obtain profits. SlowMist reminds users to pay close attention to the status of their assets on zkLend and temporarily stop recharging actions related to zkLend to avoid possible losses.