Privacy is hygiene: Buterin calls for a rethinking of data protection approaches

Vitalik Buterin has started a global discussion with a simple but impactful phrase: “Privacy is not a feature. Privacy is hygiene.” This statement was not made casually — it was a direct response to the massive data leaks in the traditional financial system, where millions of clients of JPMorgan, Citi, and Morgan Stanley were at risk due to information disclosures by SitusAMC. Ethereum founder’s comment painfully highlights how centralized financial institutions continue to treat privacy as an optional add-on rather than a fundamental user right.

Two worlds of data protection: a problem that cannot be ignored

Traditional banks and the crypto ecosystem fundamentally understand privacy differently. At Devconnect, Buterin emphasized that the growing influence of Wall Street creates serious challenges for Ethereum: the flight of leading developers and attempts by major players to reshape the protocol to suit their commercial needs. For financial conglomerates, Ethereum is not seen as a tool for expansion — they have their own fast infrastructure. Their clear goal is to reconfigure the network to fit their constraints, rather than adapt to the ecosystem’s global neutrality.

Meanwhile, data leaks in large banks demonstrate that privacy is not just a technical issue — it’s a systemic one. When client information is stored in centralized databases, risks multiply exponentially. Buterin stresses: this shows why decentralized solutions must make privacy a core principle, not something to be patched later.

Kohaku: how true privacy should work

Almost simultaneously with this warning, Buterin introduced Kohaku — a new tool that rethinks the approach to privacy within the Ethereum ecosystem. Unlike traditional wallets that rely on privacy add-ons, Kohaku builds security into the architecture itself. During the presentation, Buterin demonstrated Railgun — a technology that conceals visible public funds with a single action, showing how a basic level of privacy can look if built from the ground up, rather than added as a patch.

This is a fundamental difference. Traditional solutions often add privacy as a module, leaving most data vulnerable. Kohaku offers a different model: privacy is not a feature that can be toggled on or off, but a hygiene of the system that must be maintained constantly.

Ethereum under pressure: maintaining neutrality beyond corporate control

The importance of these reflections for Ethereum goes beyond technical details. At Devconnect, Buterin warned of two main risks from Wall Street influence. First, the high likelihood that leading developers will start leaving the project if their vision of a global and neutral network is compromised. Second, attempts by influential owners to push protocol changes that serve their business interests rather than the needs of the majority of users.

For Buterin, this is unacceptable. Ethereum must remain both global and neutral — free from corporate control logic. When JPMorgan or Citi try to influence the protocol, it potentially threatens the very spirit of decentralization. Against this backdrop, data leaks appear as yet another proof of why centralized systems are fundamentally unsuitable for protecting privacy.

Returning to fundamentals: why privacy remains a priority

Buterin’s conclusion clarifies the development direction: privacy should be a standard, not something sold as a premium feature. It’s not just about technology but also about design philosophy. When wallets, applications, and protocols are built with privacy at their core, users automatically gain protection without extra steps. When privacy is added later, users remain vulnerable for a long time.

This approach matters for the entire crypto space. From large wallets to DeFi protocols — everyone should ask themselves: is privacy the foundation of our system, or is it a patch we promised to add someday?