Build production-ready smart contracts through interactive lessons, real audits, and instant mentor support. Keep your streak alive and earn XP as you progress.
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Advance from fundamentals to advanced audits with focused modules. Each lesson unlocks new checkpoints, voice explanations, and code challenges.
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Unlock badges for streaks, perfect quizzes, and advanced code challenges. Use them to prove mastery, share with your team, and unlock exclusive community perks.
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Mentor challenges
Practice audit instincts with narrated case studies. Listen to the setup, spot the red flags, then reveal the mentor breakdown when you’re ready.
Scenario brief
You're reviewing a DeFi marketplace contract where the withdraw function pulls funds via delegatecall to a router chosen by the caller. The function lacks slippage controls and the router address is user supplied. Where is the hidden exploit?
Clues to inspect
Listen to a quick mentor summary, then answer the refresher quiz to keep your audit instincts sharp.
Mentor summary
Yesterday you reviewed initializer patterns for upgradeable contracts. Remember: public initializers without guards can let anyone seize ownership.
Here's your daily recap. In upgradeable contracts, initializers often replace constructors. If initialize is left public, any caller can claim admin rights. Always pair it with Ownable or an initializer modifier that flips a storage flag.
Refresher quiz
You find an initialize() function that sets the default admin and is marked public initializer but never flips a boolean. What's your first fix?
Request real-time explanations for tricky code reviews or test cases. The mentor keeps context from your current lesson.
Ask the mentorManagers can track team progress, assign modules, and review audit submissions from a shared dashboard.
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