What Ethereum Smart Contract Hacking Looks Like

In this video you can see me working over 10h on hacking an Ethereum smart contract. The attack was done on a private chain, so no actual Ethereum users have been affected. This was a challenge called `Montagy` from the Real World CTF 2019 competition. Even though this was part of a competition, the methodology and technologies used are the tools used in real-life Ethereum hacking as well. More Ethereum hacking: - Ethereum Smart Contract Hacking #1 - Real World CTF 2018: - Jump Oriented Programming: Ethereum Smart Contract #2 - Real World CTF 2018: - Ethereum Smart Contract Backdoored Using Malicious Constructor: 00:00:00 - Backstory 00:03:58 - Smart Contract Challenge Overview 00:20:17 - Blockchain Transaction Investigation 00:22:13 - Rough Plan & Research Setup 00:34:27 - Looking more into the Contracts 00:41:18 - Debugging with remix 01:08:43 - What we learned so far 01:09: