Privacy protocol Nullmask has expanded its zero-knowledge shielding technology to two prominent Ethereum-compatible networks: Monad, an EVM-compatible Layer 1 blockchain, and Arbitrum, a leading Layer 2 scaling solution for Ethereum. The integrations, announced on November 9, 2026, let users send, withdraw, deposit and check balances while keeping those actions private.
Nullmask works by shielding assets into a pool and removing the on-chain link between deposits and withdrawals. It uses a UTXO model similar to Bitcoin rather than Ethereum’s account model, and says users do not need new seed phrases or accounts. The protocol was introduced in March 2026 and was designed by cryptographer Tomas Krnak.
For Monad, the privacy option is paired with the network’s high-throughput design. Monad’s mainnet launched on November 24, 2025, and the project targets roughly 10,000 transactions per second, though those figures are performance targets that still need testing under production conditions. Because Nullmask is built for EVM chains, Monad’s compatibility with Ethereum bytecode is relevant to the integration.
For Arbitrum, the new feature is being framed as programmable privacy: users can transact privately without revealing identities. Arbitrum is an Ethereum Layer 2 designed to increase throughput and reduce transaction costs, and its community response to the announcement was strong on social media, according to reports.
Nullmask also includes compliance controls. In an October 2026 release, the project said every deposit waits as pending until it is approved, and that verified law enforcement requests are acknowledged within 72 hours. Nullmask said it had processed more than $50 million in private volume since October 1 and was already live on Ethereum, Base, BNB Chain and Robinhood Chain. Those figures are company statements, not independent audits.
