Vitalik Buterin: AI has killed pseudonymity, blockchain needs 'programmable privacy'
- —Buterin says AI can deanonymize users from metadata such as timestamps, transaction sizes and interaction frequency
- —In June 2026 an AI identified his anonymous writings by analyzing writing style alone
- —His fix, 'programmable privacy', would let users disclose only what is needed, such as proving funds without revealing a balance
- —Ethereum's August 2026 privacy roadmap includes keyed nonces and account abstraction as building blocks
Why it matters: It sets Ethereum's privacy direction: if pseudonymity is obsolete, demand shifts to protocols with built-in defenses against AI-driven deanonymization.
Source: Crypto Briefing