Hey! I'm David, cofounder of zkSecurity and the author of the Real-World Cryptography book. I was previously a crypto architect at O(1) Labs (working on the Mina cryptocurrency), before that I was the security lead for Diem (formerly Libra) at Novi (Facebook), and a security consultant for the Cryptography Services of NCC Group. This is my blog about cryptography and security and other related topics that I find interesting.
I just made a video covering common attacks on Ethereum's smart contracts. I used live0verflow's techniques to record and edit this one so it's going to feel different from the others :) It's a tl;dr of A survey of attacks on Ethereum smart contracts by Nicola Atzei and Massimo Bartoletti and Tiziana Cimoli.
ps: many thanks to Matthew Di Ferrante for the help!
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My book Real-World Cryptography is finished and shipping! You can purchase it here.
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