Ethereum co-founder Vitalik Buterin expressed in a letter supporting Tornado Cash co-founder Roman Storm, "I have supported Roman Storm's work from the beginning, both because I firmly believe in the importance of privacy and because I actively use privacy tools, including those he developed. Many people assume by default that personal privacy can be violated by the public, but governments, police, and intelligence agencies should have access to everyone's information to ensure security.

I strongly oppose this view. In reality, government databases are frequently hacked, and information often falls into the hands of hostile foreign forces. I have personally used his software to complete transactions; when purchasing software for personal use, my name is not recorded in corporate databases. His applications continue to function properly even years after development has ceased."