Ethereum co-founder Vitalik Buterin endorsed a Kohaku wallet feature that automatically assigns users a unique blockchain address for every decentralized application they use.
In a post covered by Bitcoin.com, Buterin framed per-dapp address isolation as “a really important place to start” for building “meaningful onchain privacy.” The idea is straightforward. If your wallet keeps the same addresses across dapps, other parties can link your activity into a single story.
Why it matters
Most Ethereum users today interact through wallets that reuse identity signals. Bitcoin.com’s coverage points to the privacy problem of single addresses. With one address showing up across multiple dapps, observers can correlate spending, timing, and interaction patterns. Even when users never reveal personal data, those linkages can shrink the anonymity set.
Per-dapp address isolation changes the default. Kohaku generates a different address for each dapp interaction, so cross-service clustering becomes harder. The feature is aimed at reducing the “easy link” effect that comes from address reuse.
Buterin’s endorsement matters because he is not just commenting on privacy as an abstract concept. Bitcoin.com reports he explicitly tied the endorsement to the practical step of per-dapp isolation as a baseline for onchain privacy.
Market impact
This is not a protocol upgrade with tokenomics or on-chain state changes. Still, it has a real systems implication.
Privacy features shift where users can get leverage. Instead of relying on every dapp to implement new privacy mechanics, wallet-level address separation can introduce a stronger privacy floor. That can reduce the usefulness of common tracing heuristics that depend on address continuity.
The immediate upside is operational. If a wallet can segment activity by dapp without forcing users to manage keys manually, the barrier to better privacy drops.
What to watch next
The next question is adoption and coverage. If Kohaku’s per-dapp addresses remain optional, privacy gains depend on which users enable it and which dapps support the flow cleanly.
Bitcoin.com’s piece also implies a bigger direction for privacy tooling. Buterin’s emphasis on “a really important place to start” suggests he sees address isolation as an early building block, not the whole solution.
For readers, the watch list is simple. Does the feature work consistently across popular wallets and dapps. Does it reduce linkage in real tracing scenarios. And does the wider ecosystem treat address isolation as a default expectation rather than a niche option.
Compact facts
| Item | What was reported | Source |
|---|---|---|
| Feature endorsed by Vitalik Buterin | Kohaku wallet auto-assigns a unique address per decentralized application interaction | Bitcoin.com |
| Privacy framing | Per-dapp address isolation described as “a really important place to start” for “meaningful onchain privacy” | Bitcoin.com |
| Problem targeted | Address reuse makes it easier to link activity across dapps, creating a single privacy identity | Bitcoin.com |