The commitment of Ethereum co-founder Vitalik Buterin to protecting privacy through technology, as evidenced by his donation of about $765,000 USD (approximately 128 Ether or ETH) to the two private messaging services Session and SimpleX. The generosity of the donation also indicates the increasing necessity of establishing a means of being digitally anonymous because of growing amounts of digital surveillance occurring everywhere.
Pushing Beyond Standard Encryption
While apps like Signal and Telegram have long been the gold standard for encrypted communication, Buterin argues that the industry must now tackle the next frontier: metadata privacy. In a statement accompanying the donation, he emphasized that while end-to-end encryption is critical, it is no longer sufficient on its own.
“Encrypted messaging is critical for preserving our digital privacy,” Buterin noted. However, he pointed out that true privacy requires protecting more than just the content of a message; it requires shielding the “who, when, and where” of the conversation. He identified “permissionless account creation”—the ability to sign up without a phone number—and “metadata privacy” as the two most urgent goals for the sector. According to Buterin, Session and SimpleX are currently leading the charge in these specific areas.
Session and SimpleX: A New Standard for Anonymity?
The two platforms benefiting from Buterin’s support offer distinct advantages over their more mainstream competitors. The app Session is described as a messenger that utilises decentralised encryption to protect against unauthorised access to personal data (metadata) through onion routing. Users never expose their true identities and senders/recipients may not be traced through Session’s server architecture.
On the other hand, SimpleX has a different yet still radical approach to its messaging service. In contrast to Session, SimpleX does not use any form of unique user identification such as phone numbers or even random-generated numbers. Instead, it creates unique identifiers on an ad-hoc basis between the sender/receiver and that connection only. As such, users maintain complete control over their personal contact list/connection communities as well as who they are. It would be very difficult for any third-party to decipher a user’s social relationships due to this unique architecture.
The “War Against Privacy” and Regulatory Pressure
The timing of this investment into Crypto and Privacy is very timely, as Governments around the world begin to analyze how they are regulating Digital Communications. In Europe, for example, the EU has been discussing new regulations that would regulate chat services through the creation of a scan feature for encrypted messages to search for unlawful content. Similarly, countries such as the UK have begun to create digital identification systems, which have created intense discussions surrounding Civil Liberties.
Chris McCabe, the co-founder of Session, described the current landscape as a “war against privacy,” noting that the stakes go far beyond simple data protection. “If you can’t connect with others as your true self, you lose your ability to express yourself and live freely,” McCabe told reporters. He warned that without these tools, modern society risks sliding into a state of “censorship, overreaching control, and corruption.”
Market Reactions and the “Privacy Premium”
Buterin’s confirmation sent an immediate boost to the cryptocurrency market. After he endorsed the token, Session’s native digital currency, SESH, skyrocketed by more than 370% within the span of 1 day due to the increase in market capitalization to approximately 15 million dollars. As a result, Session was able to confirm a trend occurring across all cryptocurrencies that are based on privacy-based value. In addition to Session, privacy coins like Zcash have experienced substantial volatility and growth in value over the course of the last year due to the increased demand from users who want to protect themselves from the “harvest and sell” business model being used by most of the Web2 companies.
Technological Hurdles Remain
While supporting its development as an application, Ethereum co-founder Vitalik Buterin offered a more realistic view stating that neither application has been completely developed. He added that both Session and SimpleX still need significant improvement in the areas of User Experience (UX) and Security/Optimisation.
“Strong metadata privacy requires decentralization, and decentralization is hard,” Buterin explained. Among other things, he mentioned some additional difficulties with technology—the requirement for keeping on-going Denial-of-Service and Sybil attacks resistant and able to function without using the centralized phone number verification system, as well as users’ desire for “multi-device compatibility” (a very challenging feature to provide securely in a distributed technology network).
Institutional Support for Privacy Grows
Buterin’s contribution is part of a wider change at the institutional level within the Ethereum ecosystem. In October of 2025, the Ethereum Foundation announced that they had created a privacy team with 28 members. The purpose of this privacy team is to continue to grow and expand on the development of initiatives related to privacy, and to establish the idea that privacy is an essential part of the Internet, and not simply a feature, or an “extra”.
As digital spaces become the predominant means of human interaction, the support for projects such as Session and SimpleX reflects this significant evolution. The objective is to safeguard the right to communicate without being tracked or profiled (in other words, the objective has surpassed simply concealing what is being said).
