> For the complete documentation index, see [llms.txt](https://gothamcash.gitbook.io/bindowscash/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gothamcash.gitbook.io/bindowscash/features/privacy.md).

# Privacy

### 🕵️ Privacy

**Privacy is not a crime — it's a right.** BindowsCash is designed to restore your transactional privacy on public blockchains, without requiring accounts, trust, or surveillance.

#### 🔗 Breaking the On-Chain Link

Public blockchains (like BNB Chain or Ethereum) expose every transaction, letting anyone trace funds between wallets.

BindowsCash uses **commitments**, **nullifiers**, and **off-chain notes** to **break this traceability**:

* Your **deposit and withdrawal** are fully **unlinked**.
* **No addresses** are stored during deposit.
* Withdrawals can be sent to **any address** — even one with no prior activity.
* The **note string** is never submitted to the blockchain.

Observers cannot correlate your input and output.

#### 🔐 Privacy-Preserving Authorization

Although BindowsCash does not use zk-SNARKs, it provides a **simplified zero-knowledge-like model** through:

* Off-chain **note generation** (`nullifier + secret`)
* Withdrawal authorization via **signed message**, proving:
  * You own the note
  * You consent to a specific recipient
  * No other party can reuse your note

This method allows any recipient address to receive funds **without revealing** who originally deposited them. The **signature is verified on-chain**, but **does not leak your address**.

#### 🧑‍💻 No Accounts. No Logins. No Surveillance.

BindowsCash operates without:

* Centralized servers
* User registrations or accounts
* Emails, logins, or KYC
* Blockchain analytics tools or IP tracking

All interactions occur **directly between your wallet and the smart contract**, with full self-custody and anonymity. In case you use our gasless relayer, it only calls the contract on your behalf. Your personal data are not viewed, stored or used in any way.

#### 🛡️ Withdraw to Cold or New Wallets

For maximum unlinkability, you can withdraw to a wallet that:

* Has never interacted with BindowsCash
* Has no prior blockchain activity

Ideal for:

* Cold storage / hardware wallets
* Freshly generated wallets
* Sensitive addresses

This completely breaks any observable link between deposit and withdrawal.

#### **Privacy benchmark compared to other mixers**

<table><thead><tr><th>Mixer / Tool</th><th width="212.2000732421875">Anonymous withdrawal?</th><th width="213.39990234375">Possible link with deposit?</th><th>Anonymity rating</th></tr></thead><tbody><tr><td>Tornado Cash (ZKP)</td><td>✅ Yes</td><td>❌ No (zero-knowledge proof)</td><td>🔒🔒 Very Strong</td></tr><tr><td><strong>BindowsCash</strong></td><td>✅ Yes</td><td>❌ No, except in case of bad user OPSEC</td><td>🔒 Strong</td></tr><tr><td>Simple multisig wallet</td><td>❌ No</td><td>✅ Yes (everything is visible)</td><td>⚠️ Low</td></tr><tr><td>Poorly designed proxy mixer</td><td>❌ No</td><td>✅ Yes, with hash or logs</td><td>⚠️ Risky</td></tr></tbody></table>

#### 💡 Tips for Maximum Privacy

To stay fully anonymous, we recommend:

1. 🆕 Use a **new wallet** to make your deposit. **Don't deposit straight from a CEX**.
2. ⏳ **Wait before withdrawing** — several hours or days helps mix with other users.
3. 🧼 Withdraw to a **clean recipient address** / **fresh wallet** with no previous on-chain activity.
4. 🔐 Store your note **offline** (e.g. encrypted USB, password manager, or printed + locked).
5. 🌐 Use a **VPN** and private browsing tools.
6. 📱 Always interact from a **secure device** (no malware, no screen recorders).

*Remember: privacy depends as much on the tool as on how you use it.*