Sui launches privacy feature that keeps regulators in the loop

Sui has opened public testing for a new privacy system that hides token balances and transfer amounts while preserving access for auditors and compliance teams, introducing a model that differs sharply from traditional privacy-focused cryptocurrencies.

According to an announcement published on June 8, confidential transfers are now available in public beta on Sui’s Devnet, with a Testnet release planned later this year. The feature encrypts transaction values and wallet balances onchain but leaves sender addresses, receiver addresses, token types, and transaction timestamps visible.

The rollout arrives as blockchain developers continue searching for ways to offer transaction privacy without removing the transparency requirements relied upon by regulators, exchanges, and institutional users.

Sui keeps transaction data private while preserving oversight

Under Sui’s design, token issuers can activate a confidential mode that conceals balances and transfer amounts from public view. The network uses Twisted ElGamal cryptography on Ristretto255 together with zero-knowledge proofs to verify transactions without exposing the underlying values.

Mysten Labs, the company behind Sui, said the system allows the network to confirm that transfers remain valid while preventing overdrafts and unauthorized token creation. The company has also released the code as open source on GitHub, although it noted that the implementation remains unaudited and should be treated as a work in progress.

Additional controls distinguish the feature from privacy coins that attempt to hide every aspect of a transaction. Authorized entities can be granted auditor keys that allow them to decrypt balances when required, while issuers retain the ability to freeze or seize assets under specific circumstances.

Users are also able to prove ownership of balances or verify transaction amounts without revealing private keys, according to Mysten Labs.

Institutions test the model as Sui seeks adoption

The structure contrasts with Monero, which conceals transaction senders, recipients, and amounts through a combination of ring signatures, stealth addresses, and Ring Confidential Transactions. Because outside parties cannot access that information, Monero has faced repeated exchange delistings linked to compliance concerns.

Rather than removing visibility entirely, Sui’s approach is being tested by firms that need privacy around financial activity while remaining capable of meeting regulatory obligations. Bridge is evaluating the technology for stablecoin and payment use cases, while TRM Labs and Merkle Science are examining how transaction monitoring, investigations, and risk assessment tools function within the encrypted framework.

Payment companies, treasury departments, and stablecoin issuers often avoid exposing transaction sizes and wallet balances because those details can reveal commercial relationships, hedging activity, or operational strategies. Sui’s confidential transfers are designed to address those concerns without eliminating audit capabilities.

The launch comes during a difficult period for the network. Sui experienced three mainnet outages in late May, raising questions about operational reliability as the blockchain pursues more institutional users.

SUI rally meets resistance below key moving averages

Market participants responded positively to the privacy rollout. SUI (SUI) rose nearly 5% on June 9 following the announcement and traded around $0.76 at the time of writing.

Despite the rebound, the technical picture remains mixed. On the daily chart, SUI continues to trade below its 20-day and 50-day moving averages near $0.91 and $0.98, indicating that sellers still control the broader trend after the token’s decline from the May peak near $1.40.

The bearish moving-average structure remains intact, while the MACD indicator continues to sit below the zero line despite showing signs that downside momentum is beginning to ease.

Shorter-term charts show a more constructive setup. On the 4-hour timeframe, SUI has rebounded from support around $0.68-$0.70 and is attempting to break above the upper boundary of a descending channel that has guided price action lower for nearly a month. A bullish MACD crossover has emerged on the same timeframe, suggesting buying pressure has strengthened since last week’s market-wide selloff.

The area around $0.80 remains the first major test for bulls because it aligns with both the channel resistance and the Supertrend indicator. A successful breakout could expose the 20-day moving average near $0.91, followed by the 50-day moving average and psychological resistance around $1.00.

On the downside, failure to clear overhead resistance could leave SUI trapped within the broader bearish structure. In that scenario, traders may look toward support near $0.70, with the recent swing low around $0.68 serving as the next key level to watch.