Blockchain & Smart-Contract Security
Beginner
EVM & Solidity Foundations
Storage layout, gas, msg.sender pitfalls, basic Solidity bugs.
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- 1Quiz+90 XP
Solidity Foundations: Storage, Memory & Security Basics
This quiz validates your understanding of EVM storage layout, function parameter types, gas optimization, and common security pitfalls in Solidity smart contracts.
open quiz - Hands-on Labeasy+30 XP
Find the Solidity Bug in 30 LOC
Static-analysis warm-up: find the vulnerability in a tiny token contract.
complete the module above first - Quiz
EVM Overview
What runs when a tx hits a contract.
complete the module above first - Quiz+90 XP
Common Bug Quiz: EVM & Solidity Foundations
Test your understanding of fundamental Solidity vulnerabilities including reentrancy, integer issues, authentication flaws, and uninitialized storage. You must demonstrate competency in recognizing and preventing these bugs to advance.
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