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

# Privacy

> How Swish protects your financial privacy on Solana.

Swish is built for private payments. Here's what that means and how it works.

## What's private

When you use Swish to **Send**, **Request**, or **Send via Claim**:

* **Your wallet address** isn't published alongside the recipient's on-chain
* **The link between sender and receiver** isn't visible in the transaction itself
* **The amount** can also be hidden, depending on the protocol used

How much protection you get depends on which protocol routes the transaction. The three Swish uses make different trade-offs, and none of them offers an absolute guarantee — see [Privacy Protocols](/privacy-protocols) for what each one does.

## How it works

Swish doesn't operate its own privacy protocol. It aggregates across three privacy primitives on Solana — **Privacy Cash**, **MagicBlock**, and **Umbra** — and picks the best route automatically. Each protocol works differently:

* **Privacy Cash** — ZK UTXO mixer
* **MagicBlock** — confidential transactions inside an Intel TDX TEE
* **Umbra** — ZK shielded pool secured by Arcium MPC

For full details on each protocol and how routing works, see [Privacy Protocols](/privacy-protocols).

## What's not private

Not everything in Swish is private. Be aware of these exceptions:

| Action             | Privacy level                                                |
| ------------------ | ------------------------------------------------------------ |
| **Send**           | Private — sender address hidden                              |
| **Request**        | Private — requester address hidden                           |
| **Send via Claim** | Private — sender address hidden                              |
| **Withdraw**       | **Not private** — standard on-chain USDC transfer            |
| **Deposit**        | **Not private** — standard on-chain transfer to your address |

<Note>
  Withdrawals and deposits are standard Solana transactions. Both addresses are visible on-chain. Use Withdraw only for moving funds to your own wallets.
</Note>

## X (Twitter) handles

If you sign in with X, your handle is used within Swish to let others send you money by username. Senders don't need your wallet address.

## Session signature

When you sign in, Swish asks you to sign a message. This signature is used locally to derive encryption keys for your private transactions. It is never sent to the blockchain and costs nothing.

## Best practices

* Use **Send**, **Request**, or **Send via Claim** for private payments — avoid Withdraw when privacy matters
* Enable **Umbra** in your profile if you want to receive funds with Umbra's stronger privacy guarantees
* Your embedded wallet (if you signed in with X) can be [exported](/features/export-wallet) — keep your private key safe