Imagine there is a contract that can execute any code you send to it. And imagine it also holds some money. How easy would it be to hack it?

Ever wanted to know how to parse bytecode by hand? Here's how! ...also with RegExp!

Is Solidity optimization a waste of time? Hard facts about the compiler's optimizers...

Crypto-twitter likes puzzles. And gas-golfing. Any CTF puzzle gains huge success, although in the end it all comes down to “test-fitting”.