lesson·25 min·Chapter 1 of 3
Beyond EOAs: Smart Accounts
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Upgrade to ProTraditional Ethereum accounts (EOAs) are controlled by a single private key. Lose the key, lose everything. Account Abstraction (AA) replaces this with programmable accounts: smart contract wallets that can define their own validation logic. ERC-4337 introduces AA without changing the Ethereum protocol. It defines: UserOperations (intents that replace transactions), a Bundler (collects UserOps and submits them), an EntryPoint contract (validates and executes UserOps), and Account contracts (smart wallets with custom logic).
💡 Key Takeaway
This lesson covers the fundamental concepts. Make sure you understand these before moving to the next chapter.