SUI Plans Private Transactions for 2026 as Network Processes 866 TPS

• SUI will introduce private transactions in 2026 as a protocol-level primitive.
• Privacy features target consumer payments and enterprise adoption challenges.
• The network processed 866 transactions per second during real on-chain activity.
• Technical upgrades position SUI among high-performance layer-1 blockchains.

Sui Network (SUI) enters 2026 with two significant developments poised to reshape its adoption trajectory. The blockchain confirmed plans to implement private transactions this year, addressing fundamental payment confidentiality barriers while its network just demonstrated 866 real transactions per second throughput. These moves come as institutional demand grows for both privacy and scalability in blockchain infrastructure. Mysten Labs co-founder Adeniyi Abiodun explicitly stated privacy will be embedded at the protocol level rather than added later, calling it essential for mass consumer payments adoption.

What Are SUI's 2026 Privacy Plans and How Do They Compare?

Sui's privacy implementation will differ markedly from established models like Zcash. Instead of Zcash's opt-in shielded pools used by just 23% of holders, Sui will bake privacy directly into its protocol.

Users won't need to activate confidentiality features for their on-chain transactions to remain private by default. This approach contrasts with Zcash's current model where shielded transactions face scalability limitations due to complex cryptographic proofs. The design aims to balance regulatory compliance needs with confidentiality using ZK-SNARK cryptography. That said, Sui must still demonstrate how this approach maintains its touted 400,000 TPS throughput potential after implementation.

Can SUI's Network Handle Mainstream Adoption After 866 TPS Milestone?

Sui Network's recent 866 TPS achievement involved actual on-chain activity rather than simulated tests. Network developers confirmed the system maintained stability and low latency during this throughput. This milestone provides concrete evidence supporting Sui's capacity to scale as ecosystem projects expand across gaming, infrastructure, and synthetic asset categories. BuilderMaps data shows accelerating project development across Sui's ecosystem. Technical upgrades like Mysticeti v2 contribute to transaction efficiency and reduced latency. Sustained throughput at these levels supports Sui's positioning against Ethereum and Solana. Its parallel execution capabilities could prove advantageous for real-world applications requiring both privacy and speed.