Privacy track has been quite popular recently. Let's take a look at some interesting projects making efforts in this area.

Arcium is focused on decentralized confidential computing networks, with core technology being multi-party computation (MPC), which can process encrypted data in parallel, allowing developers to perform computations without decrypting. This enables developers to build privacy-preserving Web3 applications based on this solution, which sounds quite practical.

UmbraPrivacy is built on Arcium's MPC technology and provides a privacy protocol layer supporting encrypted unlinkable transfers, private balance display, shielded transfers, and confidential swaps. In simple terms, it makes your transactions truly private.

MoneroChanSOL has developed a Ghost Protocol, centered around a Tornado Cash-style shielded pool combined with atomic private swaps. The highlight is the ability to perform private exchanges directly within the shielded pool, access public liquidity, and achieve true Private DeFi—completely untraceable on-chain. They have already launched a Ghost Swap beta, ZK proofs, and a private computation layer, and the $MONEROCHAN token has been deployed.

Anon0mesh takes a different approach—offline privacy cold wallets supporting encrypted private chats and confidential offline transactions via Bluetooth mesh networks. Notably, it can operate without an internet connection, which is quite attractive for users with high security requirements.

From multi-party computation to zero-knowledge proofs to on-chain shielded pools, the privacy sector is flourishing across multiple dimensions, with each project exploring its own unique approach.