Sui has added confidential transfers to its Devnet in public beta, introducing a privacy-focused payments feature designed to keep balances and transfer amounts hidden onchain while preserving sender and receiver visibility, issuer controls, and compliance access. The Sui Foundation framed the release as a response to a longstanding tension in public blockchain finance: institutions and users often need privacy for legitimate financial activity, but regulated markets also require auditability and oversight.
Sui Brings Confidential Transfers to Devnet
The Sui Foundation said in a June 8 blog post that confidential transfers are now live in public beta on Devnet, with a Testnet launch targeted later this year. The feature allows asset issuers to enable a confidential mode for tokens, under which balances and transfer amounts are not publicly visible onchain. Senders and receivers remain visible, and public and confidential transfers can coexist depending on the visibility needs of a given application or transaction flow.
In an X post, Evan Sui (more widely known as Evan Cheng), the Co-founder and CEO of Mysten Labs, described the release as part of Sui’s broader infrastructure roadmap. “We are not slowing down. Today, confidential transfer is going live on Sui Devnet.” He added: “Sui is not your grandpa’s blockchain. It’s a coordination layer, settlement layer, a programmable platform where all the tools you need to create/exchange/manage assets of value.”
The Sui Foundation positioned the feature as aimed at both institutional and everyday payments use cases where full public transparency can expose sensitive information. “Any payment provider, stablecoin issuer, or treasury team can tell you that to move real financial workflows onchain, they can’t expose their flows. Balances reveal strategy. Transaction sizes reveal commercial relationships.” The foundation also wrote that public visibility “isn’t a minor inconvenience” but “a structural barrier” for some financial workflows.
Compliance Partners Explore Sui Privacy Model
Sui’s model is not designed as full anonymity. Instead, the foundation described it as a controlled-visibility framework in which issuers define how sensitive data can be accessed, analytics providers can continue monitoring and investigation workflows, and exchanges can process deposits and withdrawals with the necessary compliance signals even when transaction amounts are not public. “Full anonymity, however, doesn’t solve any of these problems. Financial systems require compliance, auditability, and the ability for action when required. What’s missing from onchain payments isn’t opacity but control, with data that isn’t exposed by default, but remains accessible in limited capacity when required.”
The foundation said access to confidential data is intended to be scoped, authorized, and auditable, including in cases involving compliance reviews or regulatory requests. It emphasized that no single platform or application layer receives automatic access to all confidential activity. “Confidential transfers on Sui are designed around controlled visibility; no single platform or application layer has automatic access to all confidential activity on the network, unless there is a specific legal or compliance need. It is enforced at the protocol level with clear separation of roles. Issuers define policy.”
Bridge is exploring how the model could fit into stablecoin ecosystems, while TRM Labs and Merkle Science are among the first partners exploring compliance and blockchain analytics integrations. The Sui Foundation wrote: “We’re collaborating with Bridge to explore how confidential financial flows could fit within stablecoin ecosystems and the associated technical, compliance, and operational considerations. TRM Labs and Merkle Science are also working with us to explore how risk scoring, monitoring, and investigations can function within this model.” Open-source code, documentation, example integrations, and a prototype wallet are available through the Mysten Labs confidential transfers repository.
The Devnet beta gives issuers, developers, exchanges, analytics firms, and payments teams an early environment to test whether Sui’s controlled-visibility approach can support private financial activity without removing compliance pathways. For Sui, the release extends its push into payments and financial infrastructure by addressing a practical barrier for onchain adoption: keeping sensitive transaction data confidential while maintaining enforceable access when required.
AI Transparency Note: This article was prepared with the assistance of an AI system based on the sources listed and was reviewed, edited, and approved by a human editor before publication. All quotes, data points, and factual claims are intended to be grounded in the cited source material; however, errors cannot be ruled out entirely.