Two-step verification is an important security protocol that is becoming more popular. Instead of just needing a password, you need your password and something else to log in to your account. This makes it much harder for attackers.
两步验证是一种越来越流行的重要安全协议。 您不仅需要密码，还需要密码和其他登录帐户的权限。 这使攻击者更加困难 。
WhatsApp has always had the “something else”—it’s the phone number you associate with your account—but until recently, you haven’t been able to password protect your account. If someone stole your SIM card they could pop it into another phone, download WhatsApp and log right in.
WhatsApp一直都有“别的东西”(这是您与帐户关联的电话号码)，但是直到最近，您仍无法使用密码保护帐户。 如果有人偷了您的SIM卡，他们可以将其弹出到另一部手机中，请下载WhatsApp并直接登录。
Now that two-step verification is available, let’s look at how to set it up.
现在可以进行两步验证，让我们看看如何进行设置。
在WhatsApp中设置两步验证 (Setting Up Two Step Verification in WhatsApp)
Open WhatsApp and go to Settings > Account.
打开WhatsApp，然后转到设置>帐户。
If you’re on the latest version of WhatsApp, you’ll see a Two-Step Verification option. If you don’t see it, update your app. Otherwise, tap Two-Step Verification and then Enable.
如果您使用的是最新版本的WhatsApp，则会看到两步验证选项。 如果看不到，请更新您的应用。 否则，请点击两步验证，然后点击启用。
You’ll be prompted to enter a six-digit passcode and then confirm it. This should be different from your phone’s password for security.
系统将提示您输入六位数的密码，然后进行确认。 为了确保安全，此密码应与您手机的密码不同。
Next, enter and confirm your email address. There is the option to skip this step but we don’t recommend it. Without an email address attached to your WhatsApp account, you won’t be able to reset your password.
接下来，输入并确认您的电子邮件地址。 您可以选择跳过此步骤，但我们不建议您这样做。 如果您的WhatsApp帐户没有电子邮件地址，您将无法重置密码。
Tap “Done” and two-step verification will be enabled. You can disable it, or change your password or email address from the settings app at any time.
点按“完成”，将启用两步验证。 您可以随时禁用它，也可以随时通过设置应用程序更改密码或电子邮件地址。
Now, the next time you set WhatsApp up on a new phone, you’ll need to enter your password as well as the one-time code sent to your phone number.
现在，下次在新手机上设置WhatsApp时，您需要输入密码以及发送到电话号码的一次性代码。
翻译自: https://www.howtogeek.com/294161/how-to-set-up-two-step-verification-in-whatsapp/