Sui Adds Confidential Transactions After $1T Stablecoin Milestone

- Sui Network surpassing $1 trillion in stablecoin volume and preparing user-selectable on-chain privacy in 2026 - Upgrade aiming to balance flexible confidentiality with regulatory and technical demands 2026-05-11 On May 11, 2026, The Block reported that Sui Network plans to roll out confidential transactions and customizable on-chain privacy options later this year. This development marks a major technical step after the network surpassed $1 trillion in stablecoin transaction volume since August 2025, and it comes as Sui seeks to address rising demand from both institutional and retail users. According to The Block on May 11, 2026, Sui co-founder Adeniyi Abiodun said users will soon be able to optionally encrypt payment data on-chain, giving transaction parties granular control over privacy while keeping public visibility as the default. This structure is intended to allow participants to protect sensitive details as needed, while the broader network remains transparent for standard activity. The announcement comes amid surging DeFi activity on Sui and heightened sector attention following rallies in privacy-focused tokens. In addition, The Block reported that Sui has begun testnet trials for post-quantum cryptography, which is designed to enhance the network’s technical resilience against future cryptographic threats. However, recent network stress has also been evident, as The Block noted that Sui’s mainnet experienced a multi-hour outage in January 2026, underscoring the growing technical demands on the system. According to The Block on May 11, 2026, Abiodun confirmed that privacy features on Sui will be opt-in, thereby sidestepping the broad default privacy seen on chains like Zcash and attempting to balance user needs with regulatory requirements. However, the team has not yet released an exact launch date or a detailed technical roadmap for confidential transactions, leaving the implementation timeline uncertain. As of 15:09 UTC on May 11, 2026, The Block reported that Sui (SUI) was trading at $1.263, with a 9.54% rise in 24-hour volume, according to the latest market data.