Solana infrastructure provider Helius released Privacy Rings on the Solana mainnet on November 10, 2026. The feature creates programmable shielded pools that hold encrypted balances, allowing users to deposit tokens, transfer them privately, and withdraw to public wallets without leaving the Solana network.
How Privacy Rings Operate
Each Ring is an on‑chain program that stores encrypted balances alongside public assets. Users retain custody of their funds, as every transfer requires the owner’s signature. Transactions are validated with Groth16 zk‑SNARK zero‑knowledge proofs, which Helius says can be generated in tens of milliseconds. A single Solana transaction settles each private transfer.
Two privacy levels are defined:
- Confidentiality – the asset type and amount are encrypted, while sender and receiver addresses remain public.
- Anonymity – both the asset, amount, and participant addresses are hidden; this level is available only in custom Rings.
Default vs. Custom Rings
The default Ring is open to all users and provides confidentiality. Custom Rings are built for businesses and institutions, allowing operators to add compliance controls such as KYC allowlists, sanctions screening, auditor access, and fund‑freezing capabilities. Custom Rings can be configured for full anonymity and are expected to reach mainnet in the coming weeks.
Potential Use Cases
Beyond private transfers, the encrypted balances can support:
- Private swaps that trade against public liquidity without revealing trade size or price.
- Private lending and collateral posting without exposing positions.
- Private staking and yield generation on encrypted balances.
- Conditional payments such as payroll, vesting, or multisig treasury releases.
At launch, applications including Decrypt, ORE, Aurora Intents, Backpack, DFlow, Jupiter, Squads, and Titan were integrating the default Ring.
Security and Audits
Helius reports that the core programs and zero‑knowledge circuits have been audited by Certora, OtterSec, and ZK Security. The trusted‑setup ceremony involved engineers from the Solana Foundation, Blueshift, Zcash, and other teams. The code is open source under the Apache 2.0 license, and formal verification is slated for completion by the end of 2026. The Solana documentation currently lists the feature as beta.
Comparison with Other Privacy Technologies
Solana offers three privacy tools: Privacy Rings, Confidential Balances (a Token‑2022 extension), and Private Channels (institutional execution environments). Across the blockchain industry, privacy solutions fall into four categories: zero‑knowledge proofs, ring signatures, trusted execution environments, and fully homomorphic encryption. Privacy Rings belong to the zero‑knowledge family, similar to Zcash’s shielded transactions, but they operate directly on Solana’s mainnet rather than on a separate privacy chain.
