Gold Finance reports that Ethereum co-founder Vitalik Buterin has published a new blog post detailing his vision for an ideal cryptocurrency wallet. The article focuses on security and privacy, proposing key features such as cross-L2 transaction experiences, account security, fraud prevention, and data wallets. Regarding cross-L2 transactions, Vitalik suggests using chain-specific address formats (such as address@optimism.eth) and recommends that wallets automatically handle cross-chain exchange and transfer processes. For account security, he advocates for social recovery and multi-signature mechanisms, proposing a 2-of-3 protection scheme for new users, which includes zk-email, local keys, and service provider backup keys. On privacy protection, the article emphasizes the need to integrate features such as privacy pools and stealth addresses directly into mainstream wallets to achieve default privacy. In terms of data storage, Vitalik suggests that wallets evolve into personal data storage tools, employing an M-of-N key sharing mechanism to protect user data. Looking ahead, Vitalik predicts that new technologies such as AI and brain-computer interfaces will fundamentally change the way wallets interact.

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