# Wallet and Security

1. **If I don't have a Pi wallet or Pi account, can I do business with PCM?**

PCM is a platform built on the pi network blockchain. Pi is the only coin you can use on the PCM platform for now. The only way you can access PCM to do business with is by having a Pi account and Pi wallet.

2. **What's the difference between wallet address and passphrase?**

Wallet address is the alphanumeric characters generated to you when you create a wallet. It is also the address to receive pi payments.

Passphrase is the 24 keywords which are used to access your wallet. Without it you cannot access your wallet.

3. **How to bind my wallet address on PCM?**

Prepare your wallet address. Open Pi Chain Mall. Go to your account page and tap on the wallet address. Paste and confirm the wallet address.

4. **Does PCM request for passphrase during purchasing?**

During purchasing, when you pay with pi wallet, PCM will redirect you to your mainnet wallet (pi://wallet.pi) where you can confirm the payment.

Please do not type your passphrase in any place other than pi://wallet.pi

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