[Vitalik: Client-side scanning can be maintained by local AI without complex cryptography] Ian Miers, a professor of security and applied cryptography, stated that certain sensitive data should not be stored centrally, as risks remain even with MPC/FHE, such as global AML KYC or content moderation solutions. Vitalik Buterin responded that anonymous posting combined with banning functionality can be implemented through ZK proofs, and AI content addition and removal rights can also use ZK proof algorithms with delayed publication. Regarding encrypted message content moderation, Ian Miers pointed out that neither TEE nor cryptography can securely handle servers viewing all messages. Vitalik believes that a compliant approach to client-side scanning is allowing users to choose local AI maintained by different organizations or to completely disable it, without requiring complex cryptography.