Solana privacy protocol Cloak launched Cloak Payroll on 28 September 2026, allowing businesses to upload recipient and payment spreadsheets, approve a payroll run once, and send USDC or USDT through a shielded pool. The rollout was highlighted by the official Solana Twitter account and influencer @SolanaFloor. Each recipient receives a separate transfer backed by a Groth16 zero-knowledge proof, preventing employees from tracing payments to the employer or viewing colleagues' salaries. Cloak says fees are normally 0.3% of each payment plus 0.45 USDC or USDT, although launch payments are free for an unspecified period. The service has selective privacy rather than complete anonymity: viewing keys can expose records to compliance providers, pool size and transaction timing can permit correlation, and funds become public after withdrawal. Cloak's program has been live on mainnet since 24 August 2026, but its audit report and auditor have not been disclosed.