NullMask is now live on Arbitrum, adding private transfers and swaps to the Layer 2 network. The project says users can deposit ETH and supported tokens into a shared pool, then send funds, swap assets and withdraw to any address without exposing the link between deposit and withdrawal on a public ledger.
How the tool works
NullMask calls itself a zero-knowledge privacy protocol. In practice, that means it runs through wallets people already use. There is no separate account to create. A user deposits into the pool, and later activity is routed so the public chain does not show a direct line between the starting address and the destination address.
That design matters for people who do not want their balances and counterparties visible to anyone with an address. Public blockchains record payments permanently. NullMask makes this point in its own materials, noting that every payment can be searched.
Rollout across networks
The Arbitrum launch extends a wider rollout. NullMask had already said it was live on Ethereum, Base, BNB Chain and Robinhood Chain. The project listed Solana and private perpetuals as next steps. In an October press release shared via The Block, NullMask said it had processed more than $50 million in private volume since 1 October. The release also named Tomas Krnak as founder.
Arbitrum also announced the feature. TechFlow reported that users can now privately deposit, send assets and check balances through NullMask. A separate Cryptonews report said the project extended support to Monad, giving users there a way to keep sending, withdrawing and depositing activity private.
Why it is being watched
Privacy tooling remains a closely watched part of crypto. Most public chains expose payments, balances and counterparties by default. A tool like NullMask tries to reduce that exposure, though it does not make every part of a transaction invisible. Users still rely on the protocol and its pool design.
Whether the Arbitrum deployment leads to higher usage is not clear yet. The project has volume figures, and it has a growing list of networks. But privacy tools often face questions about trust, liquidity and regulatory attention. I think the next few months will show whether users treat this as a practical option or just another experiment.
For now, NullMask is available on Arbitrum through existing wallets. The team says deposits, private sends, swaps and withdrawals are supported. It is a notable step for a project that is trying to bring private transfers to networks where most activity is public.
