Rivault puts a Face ID prompt between an AI agent and your passport number

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Launched on Product Hunt (ranked #14 on launch day, free tier), Rivault stores sensitive personal data in a zero-knowledge vault the company itself cannot read by default. When an agent needs a passport number or card details to complete a task like booking a flight, the vault fires an authentication request the user clears with Face ID or a passkey; the data carries a time-bound lifespan scoped to that task session and is deterministically redacted afterward, with a fresh auth request required for any later need. It is a direct answer to a problem builders keep hitting with computer-use agents — secrets leaking into session logs and transcripts — though it is single-source and unproven at this stage.