# Arbitrum Adds NullMask Feature for Private Transfers and Balance Checks By Simon Yoon Canonical URL: https://www.tokenpost.com/news/technology/52700 Published: 2026-11-10T01:11:21.000Z Updated: 2026-11-10T01:11:21.000Z Section: Technology > Users can send funds, make deposits and check balances without disclosing their identities. Arbitrum has added a privacy feature with NullMask that supports sending funds, making deposits and checking balances without disclosing users’ identities. Arbitrum is an Ethereum layer-2 network. The feature adds another privacy option on the network alongside [Fhenix’s mainnet launch on Arbitrum](), which brought Dual Mode. That feature lets users switch a transaction from public mode to private mode. ## Links in this article - [Fhenix’s mainnet launch on Arbitrum](https://www.tokenpost.com/news/technology/37222)