Privacy, security & practical safeguards

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Vitalik Buterin stressed that privacy must transition from being an optional feature to a default that reduces data leaks by design
Vitalik Buterin cautioned that zero-knowledge proof-based privacy tools often leak transaction histories through centralized login components
Vitalik Buterin criticized crypto projects that appear decentralized on paper but rely on centralized web or app interfaces, calling them “straw houses” that fail under real-world scrutiny.
Vitalik Buterin warned that some Layer 2 networks and decentralized exchanges (DEXs) rely on centralized upgrade keys or opaque admin controls, making them vulnerable to server-side compromises. As a practical solution, he advocated for immutable frontend hosting via static HTML on IPFS

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