The world of smart contracts is unforgiving. As a Web3 Security Researcher operating under the handle rdin777, I’ve always known that manual code review is only half the battle. To truly understand a protocol’s vulnerabilities, you need to master the tools that allow you to simulate attacks, manipulate state, and debug at the opcode level.
Today, I’m proud to share that I’ve officially completed the Foundry Fundamentals course on Cyfrin Updraft! 🛠️
Why Foundry?
Coming from a security background, I needed a framework that was fast, robust, and written in Solidity. Foundry’s ability to run tests in a local environment while mimicking real-world conditions is a game-changer.
Throughout 122 lessons, I dived deep into:
Advanced Testing: Implementing the Arrange-Act-Assert pattern for complex DeFi logic.
Cheatcodes: Mastering vm.prank, vm.warp, and vm.deal to manipulate blockchain state like a god.
Mainnet Forking: Testing how my code interacts with real deployed systems without spending a cent in gas.
EVM Opcodes: Stepping through transactions with forge test --debug to see exactly what’s happening under the hood.
From Learning to Practice
I don't believe in theory without practice. While finishing this course, I was already applying these methodologies to my latest audit: Starknet Staking Audit.
Even though Starknet uses Cairo, the mental framework of rigorous testing and edge-case analysis I learned in Foundry is universal. Whether it's Solidity or Cairo, the goal remains the same: Zero-vulnerability code.
The "93% Struggle"
A quick tip for my fellow students on Updraft: If you find yourself stuck at 93% completion even with all green checkmarks—double-check every single "Mark as Complete" button! It takes discipline to cross the finish line, but the 100% mark is worth it.
What’s Next?
This badge is just the beginning. My next milestone is deep-diving into Smart Contract Security & Auditing. I'll be spending the coming weeks breaking down complex protocols and finding the "unfindable" bugs.
Check out my verified achievement here: https://profiles.cyfrin.io/u/rdin35051/achievements/foundry
Let's connect!
GitHub: rdin777
Warpcast: @rdin777
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