This April is about to see the Ethereum Pectra upgrade, and the most anticipated one is undoubtedly the EIP-7702 proposal: EIP-7702 defines a new type of transaction where users can "map" the execution logic of any smart contract to an external account (EOA). We will use a series of articles to analyze the impact of EIP-7702 on smart account wallets from a developer's perspective, and explore corresponding security topics