> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stable.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Private transfers

> How Stable shields commercially sensitive transfer amounts using zero-knowledge cryptography while keeping parties auditable.

Treasury operations, supplier payments, and salary runs where the amount is commercially sensitive and shouldn't be published to the world.

## The problem

All standard EVM transfers are publicly observable. A payroll run or supplier settlement leaks business-critical data on-chain: who paid whom, how much, and how often. Competitors, counterparties, and anyone scraping the network can reconstruct payroll bands, vendor pricing, and treasury moves without asking.

## How Stable addresses it

* **Confidential transfer uses zero-knowledge cryptography to shield transfer amounts** while keeping the parties auditable for compliance, so sensitive numbers stay private without sacrificing the audit trail. See [Confidential transfer](/en/explanation/confidential-transfer).
* **Flow of funds shows where confidential transfer sits** in the full USDT lifecycle from on-ramp to off-ramp. See [Flow of funds](/en/explanation/flow-of-funds).

## Next recommended

<CardGroup cols={2}>
  <Card title="Confidential transfer" icon="eye-off" href="/en/explanation/confidential-transfer">
    Review how ZK cryptography shields transfer amounts while keeping parties auditable.
  </Card>

  <Card title="Flow of funds" icon="arrow-right-left" href="/en/explanation/flow-of-funds">
    Trace USDT from on-ramp through on-chain transfer to off-ramp settlement.
  </Card>
</CardGroup>