Ethereum co-founder Vitalik Buterin transferred around $2.6 million worth of tokens through the privacy-focused protocol Railgun on Wednesday, in what appears to be both a routine financial transaction and a quiet endorsement of blockchain-based privacy.It's unclear how the funds sent to Railgun — which included a mix of ETH and USDC — were ultimately used. Railgun is a tool designed to obfuscate on-chain activity, enabling investors to use decentralized finance (DeFi) protocols without transactions being tied to their personal crypto wallets
source: https://www.coindesk.com/tech/2025/06/04/vitalik-buterin-uses-privacy-tool-railgun-again-signaling-ongoing-embrace-of-on-chain-anonymity