Ethereum co-founder Vitalik Buterin has publicly defended Tornado Cash co-founder Roman Storm, emphasizing the importance of privacy tools. In a letter, Buterin expressed his long-standing support for Storm's work, highlighting his belief in the necessity of privacy and his personal use of such tools. He criticized the notion that governments and agencies should have unrestricted access to citizens' information, citing risks of data breaches and misuse by foreign entities. Buterin also noted that he has used Storm's software for transactions, valuing the privacy it provides.