要启用两步验证，您需要先获得相关权限，以便访问开通短信（文本消息）功能的手机、固定电话或安装在任何智能移动设备或平板电脑上的身份验证器应用。系统将提示您选择以上方法之一来接收身份验证代码。有关更多信息，请参阅关于两步验证。

1、在卖家平台中，前往【设置】，然后选择【登录设置】。

2、在【登录和安全】页面上，选择【两步验证 (2SV) 设置】选项旁边的【编辑】。

3、在【高级安全设置】页面上，选择【开始】。

在设置两步验证时，您可以选择三种接收身份验证代码的方式：短信 (SMS)、电话或身份验证器应用。选择【电话号码】或【身份验证器应用】以便开始。

电话号码

1. 选择【短信 (SMS)】 或【语音接收（您将收到电话呼叫）】。
2. 选择您要使用的电话号码对应的国家/地区代码，并在所提供的字段中输入该电话号码，然后点击【发送验证码】或【立即给我打电话】。您将收到短信（文本消息）或语音呼叫，具体取决于您选择的接收方式。此过程可能需要几分钟时间。
3. 输入发送至您的设备的验证码，然后点击【确认验证码并继续】。

身份验证器应用

1. 在您的智能移动设备或平板电脑上安装身份验证器应用。点击【需要应用？】以了解相关说明。
2. 在应用中创建账户，然后扫描网页上的条形码。如果条形码无法扫描，请点击【无法扫描条形码？】获取可输入的密码。
3. 输入应用生成的代码，然后点击【验证并继续】。

有关更多信息，请参阅使用身份验证器应用进行两步验证。

选择一个备用方法来接收验证码。如果您无法通过主设备接收验证码，系统将使用此方法。

1、选择一个与您的主方法不同的备用方法。

2、如果您选择【短信 (SMS)】 或【语音接收（您将收到电话呼叫）】，请输入电话号码。

3、点击【发送验证码】。

您必须添加一个备用设备才能完成两步验证过程。如果您的备用设备不在身边，请选择【跳过验证】复选框，然后点击【保存备用号码】。亚马逊将不会向此号码发起验证。

您可以将您的设备设为“可信设备”，这样一来，就不必在每次尝试访问账户时都要输入验证码。

1、要将您的设备设为可信设备，请选择【将此设备设为信任设备，不需要验证码登录】。

2、点击【了解。启用两步验证按钮】。

 亚马逊官网原文详情：

How to enable Two-Step Verification

Before you enable Two-Step Verification, you need access to either a cell phone with SMS (text), a landline telephone, or an authenticator app installed on a smart mobile device or tablet. You'll be asked to choose one of these methods to receive authentication codes. For more information, see About Two-Step Verification.

1、In Seller Central, go to Settings and select Login Settings.

 

2、On the Login & security page, select Edit next to the Two-Step Verification (2SV) Settings option.

 

3、On the Advanced Security Settings page, select Get Started.

Note: If you encounter any issues after enabling Two-Step Verification, see Two-Step Verification FAQ.

 

Choose how you'll receive codes

When setting up Two-Step Verification, you have three options for how you would like to receive your authentication code: text message (SMS), phone call, or authenticator app. Select Phone number or Authenticator App to begin.

Phone number

1. Select Text message (SMS) or Voice delivery (you will receive a phone call).
2. Choose the country code for the phone number you plan to use, enter the phone number in the field provided, and then click Send code or Call me now. You'll receive an SMS (text) or voice call depending on the method you chose. It might take a few minutes.
3. Enter the code that was sent to your device, and then click Verify code and continue.

Note: If you see The phone number you've entered is not valid or The code is invalid, verify that you've entered the number in the correct format (XXX-XXX-XXXX), and then click Send code to begin the process again.

 

Authenticator App

1. Install an authenticator app on your smart mobile device or tablet. Click Need an app? for instructions.
2. Within the app, create an account, and then scan the barcode on the webpage. If the barcode doesn't scan, click Can't scan the barcode? for a key that you can enter.
3. Enter the code generated by the app, and then click Verify code and continue.

 

For more information, see Use an authenticator app for Two-Step Verification.

Add a backup verification method

Choose a backup or alternate method to receive authentication codes. This method will be used if you are unable to receive your authentication code through your primary device.

1、Select a backup method that is different from your primary method.

 

2、If you choose Text message (SMS) or Voice delivery (you will receive a phone call), enter the phone number.

 

3、Click Send code.

You must add a backup device to complete the Two-Step Verification process. If you aren't near your backup device, select the Skip verification check box, and then click Save backup number. Amazon will not initiate a verification of that number.

 

Note:

• If you are unable to download an authenticator app, or don't have a second phone number, we recommend using the phone number of a friend, spouse, or other family member.
• If you are unable to receive an authentication code through either your primary or backup device, you might need to go through the Account Recovery process to regain access to your account. This can take up to 48 hours.

Almost done

You can make your device a "trusted device," so you don't have to enter an authentication code every time you try to access your account.

1、To make your device a trusted device, select Don't require codes on this device.

 

2、Click the Got it. Turn on 2-Step Verification button.

 

 

 文章来源：亚马逊官方网站