Hackers were able to drain $16.4 million in ETH and Dai from DeFi projects Akropolis, Value DeFi Protocol, and Origin Protocol using flash loans, just in the past week. Value DeFi Attack An attacker on Value DeFi swapped flash-loaned ETH for DAI and USDT, deposited part of the flash-loaned DAI into Value DeFi’s multi-stablecoin vault. They…