Odaily Planet Daily News BlockSec monitoring shows that Quaternion, a full-stack B2B B2C service provider for NFT, was hacked due to the use of incorrect conditions by the QTN token developer, and lost about 2.546 WETH. The QTN token has an inflation mechanism. As the number of QTN transactions in Uniswap increases, the total amount of QTN will also increase. However, the developers of QTN used "from == UniswapPair" to determine whether there is QTN for sale. This incorrect condition is the root cause of this attack. BlockSec reminds that the source of the hacker's funds seems to come from the Ankr Exploiter on BSC.