According to The Block, security firm BlockSec helped the hacked stablecoin trading project Platypus recover $2.4 million. Blocksec’s visualization tool MetalSleuth said that of the nearly $9.1 million stolen from Platypus, the attackers could only cash out $270,000. Dollar. BlockSec took advantage of the loopholes in the attack contract and used the callback function to transfer funds from the attack contract to Platypus' account. So far, $2.4 million has been recovered. Foresight News previously reported that the Platypus stablecoin Platypus USD was hit by a flash loan attack yesterday, resulting in a loss of about $9 million.