Here's a step-by-step tutorial on how to activate the withdrawal whitelist feature and add a withdrawal address on Huobi. The withdrawal whitelist is a security feature that restricts withdrawals to only approved addresses, adding an extra layer of protection for your assets.

Step 1: Log in to your Huobi account

1. Visit the Huobi website (www.huobi.com) or open the Huobi app.
2. Click "Log In" (on the website) or tap "Account" (in the app) and enter your email address or phone number and password.
3. Complete any necessary authentication steps, such as 2FA or Captcha.

Step 2: Access the security settings

1. Once you're logged in, hover over your profile icon in the top right corner (on the website) or tap on the profile icon in the bottom right corner (in the app).
2. Click or tap "Security Center" to access your account's security settings.

Step 3: Activate the withdrawal whitelist feature

1. Locate the "Withdrawal Whitelist" section.
2. Click or tap "Enable" to start the process. You may be prompted to complete additional authentication steps.

Step 4: Add a withdrawal address to the whitelist

1. In the "Withdrawal Whitelist" section, click or tap "Add Whitelist".
2. Select the desired cryptocurrency from the dropdown menu.
3. Enter the withdrawal address in the "Address" field.
4. Provide a label or nickname for the address in the "Label" field. This will help you easily identify the address in the future.
5. Click or tap "Submit" to add the address to your whitelist.

Step 5: Confirm the addition via email or SMS

1. Check your email or SMS for a confirmation message from Huobi. It may take a few minutes to arrive.
2. Open the email or SMS and click or tap the "Confirm" button or enter the provided code to finalize the process.

Now, your Huobi account is set up to only allow withdrawals to the whitelisted address(es). You can add more addresses following the same process or remove existing ones by clicking the trash icon next to the address in the "Withdrawal Whitelist" section.

If you have any questions or need further assistance, please don't hesitate to reach out.