Ethereum co-founder Vitalik Buterin advocates for privacy in the crypto space, emphasizing openness and self-sovereignty over “walled gardens” to preserve decentralized systems. Decentralized identity and privacy-preserving infrastructure are actively developing on Ethereum, with more than 750 privacy-focused projects on the network.

Buterin warns against centralized digital IDs, proposing attribute-based verification using zero-knowledge proofs to protect privacy and avoid long-term tracking. Ethereum serves as a testing ground for decentralized identity and privacy-preserving infrastructure, with the community embracing privacy, zero-knowledge tools, and human-centric identity as key aspects of the platform’s ethos.

Enterprise-focused identity platforms like Hashgraph Group’s IDTrust and proof-of-personhood systems like Sam Altman’s World ID continue to evolve, offering decentralized options for digital credentials and unique human verification. Critics raise privacy concerns around biometric-based systems like World ID, highlighting ongoing debates over privacy and coercion in digital identity.

Swiss surveillance reforms spark privacy concerns, as proposed changes expand monitoring obligations for service providers and require identity verification for users without end-to-end encryption. Privacy-focused companies like Proton freeze investments amid uncertainty, while Switzerland’s Council of States moves to rein in proposed telecommunications surveillance expansions.

Concordium blockchain launches a mobile app for zero-knowledge age verification in the UK, enabling users to prove their age without revealing identity. Google announces the expansion of government-issued digital IDs in Google Wallet with zero-knowledge proofs for age verification in multiple US states, highlighting mainstream adoption of privacy-preserving technology.

Read more at Cointelegraph: Decentralized Identity in 2025 and the Next Phase of Privacy