What are These Flash Loans that Caused an Uproar in Cryptoverse?

Two recent attacks on decentralized finance (DeFi) platform bZx prompted a number of discussions about flash loans. But what are these and how are they useful to a hacker – or rather, an “exploiter”?
DeFi lending usually requires a collateral, and given the volatility of the market, most lenders will allow users to borrow up to 75% of the available collateral,  Read more »
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