According to CoinMeta, the wallet delegation feature of EIP-7702 was reviewed at a security seminar in Usenix in the United States. The security study found that 63% of the EIP-7702 authorized transactions in the analysis samples were related to contracts controlled by attackers, resulting in theft of over $2.3 million. The study indicates that wallet delegation may expand the scope of attacks, and users may be deceived when signing malicious authorizations. EIP-7702 is part of Ethereum's broader direction towards account abstraction, allowing external parties to temporarily delegate code execution in a manner similar to smart contract accounts. While this can improve the wallet experience, it also introduces new user risks. The study emphasizes that wallet design is crucial, and users need to clearly understand what they are authorizing in order to avoid being exploited by attackers.