Talk by Kaihua Qin presented at Financial Cryptography and Data Security 2021
 on a paper titled "Attacking the DeFi Ecosystem with Flash Loans for Fun and Profit" by Kaihua Qin, Liyi Zhou, Benjamin Livshits, Arthur Gervais. 
The paper is online at https://fc21.ifca.ai/papers/158.pdf and the conference program is at https://fc21.ifca.ai/program.php
Did you miss our previous article... 
https://cryptovideos.club/crypto-hacks/crypto-market-crashes-on-macro-fears