What launched on Arbitrum
NullMask is now live on Arbitrum. The project says its privacy protocol lets users deposit ETH and supported tokens into a shared pool, then send funds, swap assets and withdraw to any address. The aim is to avoid exposing a public link between deposits and withdrawals. Users access it through wallets they already have, so there is no separate account to create. NullMask describes itself as a zero-knowledge privacy protocol for private transfers and swaps. A press release published via The Block names Tomas Krnak as founder. Arbitrum also announced the feature. TechFlow reported that users can privately deposit, send assets and check balances through NullMask.
How the transfers work
The shared pool is the core of the setup. A deposit goes into the pool, and a withdrawal can go to a different address. In between, the protocol supports private sends and swaps. That design tries to break the on-chain trail that normally connects one wallet to another. It is not a separate app or a new wallet. Existing wallet users can interact with NullMask directly. The practical result, if the pool has enough activity, is that outside observers have a harder time matching a deposit to a later withdrawal. I think pool size and user behavior will matter as much as the tech itself.
Rollout and volume
The Arbitrum launch extends NullMask beyond Ethereum and Base. An October release said the service was live on Ethereum, Base, BNB Chain and Robinhood Chain, with Solana and private perpetuals listed as coming next. That release also said NullMask had processed more than $50 million in private volume since 1 October. Separately, Cryptonews reported that NullMask extended support to Monad. The Arbitrum deployment is another step in that wider rollout, though not every listed network has the same features yet.
What to watch
Privacy tools get attention because public blockchains expose payments, balances and counterparties to anyone with an address. NullMask makes the same point in its release, noting that every payment on a public chain is permanent and searchable. Whether the Arbitrum deployment leads to higher usage is not clear. Adoption will depend on user trust, liquidity and how well the privacy holds in practice. For now, the protocol is live and open to wallet users on Arbitrum.
