Mixnet protections between you and Ethereum with NymVPN

NymVPN’s new dApp mode shields the metadata between your wallet and ETH blockchain, all while staying connected in the Fast mode

Casey Ford, PhDCommunications Lead

Harry Halpin, PhD

December 23, 20253 mins read

NymVPN has launched a new dApp mode to provide mixnet protections for transactions to the Ethereum blockchain. The mode allows you to stay connected to the NymVPN Fast mode for your general traffic while routing your wallet through the Noise Generating Mixnet. It’s like a little split tunneling for crypto, but via the world’s most anonymous network.

Learn how to set up your SOCKS5 mixnet connection via RPC nodes, and start making crypto private for once.

Bringing privacy to crypto

Privacy protections were never baked into blockchain technology. Crypto transactions remain visible on the public ledger, surveillance of metadata trails of users is rife, and data collection practices by wallets undermine the pseudoanonymity they are meant to provide.

It is for this reason that Vitalik Buterin laid out a roadmap for building in L1 privacy protections for the Ethereum chain and dApps. Notably, he recognizes the need for network-level anonymization provided by the kind of mixnet technology powering NymVPN.

The goal of network anonymity is precisely to prevent metadata leakage:

“Wallets should connect to multiple RPC nodes, optionally through a mixnet, ideally use a different RPC node per dapp.”

– Vitalik Buterin

Privacy protections aren’t just needed on-chain, but also at the level at which users interact with the chain (e.g., from their dApps and wallets). Even before permanently inscribed on blockchain’s public ledger, metadata reveals a lot about who we are, what we are sending, and to whom. This metadata can make us the target of unwarranted surveillance and cybercrime. As we’ll see, NymVPN changes all that.

But first, what is an RPC node?

Wallets interact and communicate with the blockchain via nodes which make Remote Procedure Calls (RPC), for example, to signal a transfer, balance, etc. However, many of these RPC nodes are centralized and collect metadata of users and activities. And in the end, running your own full node for privacy is pretty resource intensive for most people.

One option is to allow users to use different RPC nodes per dApp to prevent metadata histories from being easily aggregated. But the other option, which Nym has developed with the world’s first mixnet for general internet traffic, is network-level anonymization.

Mixnets break up the metadata trail

When you connect with the internet via NymVPN’s Anonymous mode, your data packets are mixed or shuffled together with others by mix nodes on a decentralized, 5-hop route with added noise: cover traffic, timing obfuscation, and randomized pathways. This makes it very difficult for even AI-based traffic analysis to identify your patterns or signal in the noise of the network in order to de-anonymize you.

“Nym is a kind of mixnet where the packets are delayed using a statistical process that both allows an estimate of the average delay of a packet but provides maximum anonymity as it is unknown when any given packet is finished mixing. Packets are sent from a program like a Bitcoin wallet through a gateway, then three mix nodes, and finally out of a gateway. Unlike Tor and VPNs, the packets are each sent routed through the network individually. With Nym, dummy packets are added to increase the anonymity of packets.”

– Harry Halpin and Ania Piotrowska, Bitcoin Magazine

Why the dApp mode is needed now

Of course, not everything we do online needs the same level of anonymity, and advanced obfuscation methods like the mixnet introduce significant latency – fine for crypto transactions, but not great for browsing. So NymVPN gives you an choice for how you want to route your traffic:

Through the Fast mode, a 2-hop decentralized network with AmneziaWG (a fork of the WireGuard protocol)
Or the Anonymous mode, a 5-hop mixnet path with more noise

Check out Nym’s step-by-step guide to what happens with your traffic in the Anonymous mode.

With the dApp mode enabled, you can stay connected to the Fast mode for your general traffic while connecting a wallet like Metamask to the mixnet via a SOCKS5 proxy. This allows you to select your own RPC proxy for Ethereum and use the mixnet without ever switching NymVPN modes.

Watch Harry Halpin explain the significance of this for crypto and wallet users worldwide:

Learn how the NymVPN dApp mode works and try it out today. Note that this is a beta feature, so let us know how it’s working for you!

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What’s next for NymVPN

NymVPN has introduced split tunneling for Android which allows you to choose which apps use the VPN and which bypass it to connect with the internet directly.

In 2026, NymVPN will introduce split tunneling for all platforms to allow you to route specific apps through different NymVPN modes, thus taking the dApp feature to the next level.

About the authors

Casey Ford, PhD

Communications Lead

Casey is the Head of Communications, lead writer, and editorial reviewer at Nym. He holds a PhD in Philosophy and researches the intersection of decentralized technologies and social life.